Codex is EATING my Mac's disk space

A GitHub issue filed against OpenAI's Codex repository reports that the Codex Desktop app for macOS (version 26.527.60818, CFBundleVersion 3437) continuously writes paired .dmp and _sidecar.json Crashpad files to ~/Library/Application Support/com.openai.codex/web/Crashpad/pending, reaching 4.9GB across 54,504 files — 27,252 .dmp and 27,252 _sidecar.json — in a single day. The reporter measured the file count climbing from 53,444 to 54,064 to 54,504 during the investigation while the app stayed usable, and observed two browser_crashpad_handler processes running under PPID=1 since May 30, 2026 sharing the same Crashpad database. The reporter says the dumps may contain memory, local paths or private data and is withholding minidumps publicly pending a safe upload path from OpenAI maintainers.

Repository navigation Codex Desktop continuously generates Crashpad pending dumps, growing without any limit: +5GB per day at least 25921 appIssues related to the Codex desktop app https://github.com/openai/codex/issues?q=state%3Aopen%20label%3A%22app%22 Issues related to the Codex desktop app bugSomething isn't working https://github.com/openai/codex/issues?q=state%3Aopen%20label%3A%22bug%22 Something isn't working performance https://github.com/openai/codex/issues?q=state%3Aopen%20label%3A%22performance%22 Description Summary Codex Desktop is continuously adding paired .dmp and sidecar.json files under: ~/Library/Application Support/com.openai.codex/web/Crashpad/pending On my machine this directory grew to 4.9G and 54,504 files in one day. The count continued increasing during investigation, so this appears to be active Crashpad dump generation rather than stale one-time leftovers. The Codex Desktop app is still functional while this is happening. I can use the app, inspect the filesystem, and interact with GitHub from the same running session. So the user-visible problem is not that Codex is fully crashing or unable to launch. The issue is that Crashpad is continuously generating pending dump/sidecar pairs in the background while the app remains usable, causing unbounded local disk growth. I am not attaching minidumps publicly because they may contain memory, local paths, or private data. I can share the newest .dmp privately if OpenAI maintainers provide a safe upload path. Environment - Product: Codex Desktop app on macOS - Codex app version: 26.527.60818 - CFBundleVersion : 3437 - Crashpad/Electron annotation observed from live process: prod=Codex Mac , ver=148.0.7778.179 - macOS: 26.3.1 25D771280a - Architecture: arm64 Observed evidence Crashpad pending directory: ~/Library/Application Support/com.openai.codex/web/Crashpad/pending Latest measurements: 4.9G ~/Library/Application Support/com.openai.codex/web/Crashpad/pending 54,504 files total 27,252 .dmp files 27,252 sidecar.json files Sampled pending file time range: oldest sampled pending files: 2026-06-02 13:31:21 CEST latest sampled pending files: 2026-06-02 21:08:24 CEST During the investigation the count increased from 53,444 to 54,064 , then to 54,504 , which indicates the queue was still growing. I also observed two Codex browser crashpad handler processes running under PPID=1 since Sat May 30 11:47:50 2026 , both using the same Crashpad database: /Applications/Codex.app/.../Helpers/browser crashpad handler \ --database=~/Library/Application Support/com.openai.codex/web/Crashpad \ --annotation=plat=OS X \ --annotation=prod=Codex Mac \ --annotation=ver=148.0.7778.179 The local app remained usable enough to inspect/report this, so the visible issue is not just a normal foreground app crash. It looks like Crashpad or a monitored helper process is repeatedly generating pending dumps without bounding, upload/processing cleanup, or rotation. Expected behavior Crash reports should be bounded, uploaded/processed/rotated, or not continuously generated while the app remains usable. Actual behavior Pending Crashpad reports accumulate rapidly and consume multiple GB of local disk space. Commands used to collect evidence du -sh "$HOME/Library/Application Support/com.openai.codex/web/Crashpad/pending" find "$HOME/Library/Application Support/com.openai.codex/web/Crashpad/pending" -maxdepth 1 -type f | wc -l find "$HOME/Library/Application Support/com.openai.codex/web/Crashpad/pending" -maxdepth 1 -type f \ | sed 's/. \.//' | sort | uniq -c | sort -nr /usr/libexec/PlistBuddy -c 'Print :CFBundleShortVersionString' /Applications/Codex.app/Contents/Info.plist /usr/libexec/PlistBuddy -c 'Print :CFBundleVersion' /Applications/Codex.app/Contents/Info.plist sw vers uname -m ps ax -o pid,ppid,lstart,command \ | grep -E 'browser crashpad handler|com.openai.codex/web/Crashpad' \ | grep -v grep Related issues This may be related to other Codex Desktop helper/process cleanup reports: - Codex App update left old crashpad helper; relaunch could no-op until clean restart 25259 https://github.com/openai/codex/issues/25259 : stale Crashpad helper after update/relaunch - Codex App UI freezes: worker crashes, massive git/worktree errors, and concurrent orphaned app-server processes 11090 https://github.com/openai/codex/issues/11090 : orphaned Codex processes and UI freezes - Can't open app in Tahoe 26.2 25C56 10627 https://github.com/openai/codex/issues/10627 : prior Crashpad/macOS startup reports Activity 1. added bugSomething isn't working https://github.com/openai/codex/issues?q=state%3Aopen%20label%3A%22bug%22 Something isn't working appIssues related to the Codex desktop app https://github.com/openai/codex/issues?q=state%3Aopen%20label%3A%22app%22 Issues related to the Codex desktop appon Jun 2, 2026 2. Jolg42 commentedon Jun 2, 2026 AuthorMore actionsUpdate: I cleared the files inside the Crashpad pending directory after filing this issue.Result immediately after cleanup: before cleanup: 4.9G, 54,504 files cleanup action: deleted files under ~/Library/Application Support/com.openai.codex/web/Crashpad/pending immediate post-cleanup state: 6.4M, 70 files post-cleanup split: 35 .dmp files, 35 sidecar.json files So the bulk of the disk usage was recoverable by deleting pending reports, but new paired dump/sidecar files appeared immediately afterward. That supports the earlier observation that Crashpad dump generation is still active, not just a stale historical backlog. I did not attach any .dmp files publicly. 3. I am seeing the same issue on macOS with a newer Codex Desktop build, with a bit more diagnostic detail. Environment - Product: Codex Desktop app on macOS - Codex app version: 26.602.71036 - CFBundleVersion : 3685 - Framework/Crashpad annotation observed in dumps: ver=149.0.7827.54 - Architecture: arm64 - Crashpad database path: ~/Library/Application Support/com.openai.codex/web/Crashpad Impact observedThe pending directory grew to about 61G : ~/Library/Application Support/com.openai.codex/web/Crashpad/pending Counts from the pending directory before cleanup: files: 738,864 .dmp files: 369,431 sidecar.json files: 369,433 bytes: 63,233,668,274 GiB: 58.89 recent 24h files: 98,218 recent 7d files: 573,480 oldest: 2026-06-01 10:52:52 newest: 2026-06-09 10:00:26 After cleanup/reinstall/restart, the directory continued growing at roughly one crash report per second: 10:28:46 files=142 MiB=11.63 10:28:51 files=152 MiB=12.44 10:28:56 files=162 MiB=13.26 10:29:01 files=172 MiB=14.08 10:29:06 files=182 MiB=14.89 Key diagnostic detailThe newest .dmp files contain this FATAL message from browser crashpad handler itself: browser crashpad handler Codex Mac crashpad-handler 0609/103121.674299:FATAL:third party/crashpad/crashpad/handler/mac/exception handler server.cc:76 Check failed: kr == KERN SUCCESS. mach port request notification: os/kern invalid capability 20 executable path=/Applications/Codex.app/Contents/Frameworks/Codex Framework.framework/Versions/149.0.7827.54/Helpers/browser crashpad handler --database=/Users/<user /Library/Application Support/com.openai.codex/web/Crashpad --annotation=prod=Codex Mac So in this case it looks like browser crashpad handler is crashing/restarting in a loop and writing paired .dmp / sidecar.json files for itself.System diagnostic logs also show repeated browser crashpad handler crashes with: procName: browser crashpad handler procPath: /Applications/Codex.app/Contents/Frameworks/Codex Framework.framework/Versions/149.0.7827.54/Helpers/browser crashpad handler coalitionName: com.openai.codex exception: EXC BREAKPOINT / SIGTRAP Related behaviorThe in-app browser / Browser Use had previously become unavailable on this machine. During investigation, Codex logs repeatedly showed Browser Use / IAB lifecycle entries, and browser use availability resolved available=true shortly before Crashpad kept generating dumps. That may or may not be the trigger, but the issue appears tied to the Codex Desktop browser/Chromium/Crashpad path.A reinstall did not fix it. Disabling browser@openai-bundled , disabling chrome@openai-bundled , and setting BROWSER USE AVAILABLE BACKENDS = "" in ~/.codex/config.toml also did not stop the dump growth after restart. Temporary workaround that stopped disk growthBecause macOS would not allow modifying /Applications/Codex.app/.../browser crashpad handler even with sudo Operation not permitted , I worked around it by making the user Crashpad database read-only and immutable: crash="$HOME/Library/Application Support/com.openai.codex/web/Crashpad" pkill -f "browser crashpad handler. com.openai.codex/web/Crashpad" 2 /dev/null || true chflags -R nouchg "$crash" 2 /dev/null || true chmod -R u+w "$crash" 2 /dev/null || true rm -rf "$crash/pending" "$crash/new" "$crash/completed" "$crash/attachments" mkdir -p "$crash/pending" "$crash/new" "$crash/completed" "$crash/attachments" chmod -R 555 "$crash" chflags -R uchg "$crash" After that, pending stayed at zero for the observed window: 10:40:12 files=0 MiB=0.0 10:40:17 files=0 MiB=0.0 10:40:22 files=0 MiB=0.0 10:40:27 files=0 MiB=0.0 10:40:32 files=0 MiB=0.0 10:40:37 files=0 MiB=0.0 10:40:42 files=0 MiB=0.0 10:40:47 files=0 MiB=0.0 This is only a disk-growth workaround, not a real fix, since it effectively prevents Codex from writing Crashpad reports. Reacted by ai-poet 4. I am too, just cleaned up 22G today 5. changed the title~~ - Codex Desktop continuously generates Crashpad pending dumps, growing to ~5GB /- ~~ + Codex Desktop continuously generates Crashpad pending dumps, growing without any limit: +5GB per day at least /+ on Jun 9, 2026 6. same issue on version 26.601.10930. cc @dnakov https://github.com/dnakov 7. I think this is fixed with later macos versions. at least in 26.5 it is Reacted by Jonathan Chang 8. I ran into this exact same issue. Oh my god, no wonder my Mac's storage keeps getting full. Is Codex Desktop just a mountain of garbage code OpenAI built via vibe coding? Reacted by jordanade 9. Both Claude and Codex have ZERO RESPECT for user's machines. Holy hell. Reacted by louie-lou and James Power 10. every json just 2 bytes+ 150KB, but the more serious thing behind is that, there are crash reports continously generating in /System/Library/Caches/com.apple.coresymbolicationd/data use this script to check your macOS. bash /usr/bin/env bash set -uo pipefail recent-files.sh Usage: ./recent-files.sh directory hours Examples: ./recent-files.sh ./recent-files.sh / 24 sudo ./recent-files.sh / 168 Environment: PAGE SIZE=500 ./recent-files.sh / 24 FORCE SCAN=1 ./recent-files.sh / 24 macOS: bypass Spotlight and scan DIR="${1:-.}" HOURS="${2:-24}" PAGE SIZE="${PAGE SIZE:-1000}" FORCE SCAN="${FORCE SCAN:-0}" if -d "$DIR" ; then echo "Error: '$DIR' is not a directory" exit 1 fi if "$HOURS" =~ ^ 0-9 +$ ; then echo "Error: hours must be a positive integer" exit 1 fi if "$PAGE SIZE" =~ ^ 0-9 +$ ; then echo "Error: PAGE SIZE must be a positive integer" exit 1 fi TMP="$ mktemp "${TMPDIR:-/tmp}/recent-files.XXXXXX" " trap 'rm -f "$TMP"' EXIT PAGE=0 is gnu find { find --version /dev/null 2 &1 } is macos { "$ uname -s " == "Darwin" } index linux gnu find { local minutes=$ HOURS 60 Output fields: sort epoch | size | added date | modified date | file path find "$DIR" \ -type f \ -mmin "-$minutes" \ -printf '%T@\t%s\t%w\t%TY-%Tm-%Td %TH:%TM:%TS\t%p\n' \ 2 /dev/null \ | sort -nr "$TMP" } index macos spotlight { local cutoff iso cutoff iso="$ date -v-"${HOURS}"H '+%Y-%m-%d %H:%M:%S' " Spotlight is indexed and very fast, but may exclude some system/protected areas. kMDItemFSContentChangeDate = modified/change date. mdfind -onlyin "$DIR" \ "kMDItemFSContentChangeDate = \$time.iso $cutoff iso " \ 2 /dev/null \ | while IFS= read -r file; do -f "$file" || continue mtime epoch="$ stat -f '%m' "$file" 2 /dev/null " || continue size="$ stat -f '%z' "$file" 2 /dev/null || echo "-" " added="$ stat -f '%SB' -t '%Y-%m-%d %H:%M:%S' "$file" 2 /dev/null || echo "-" " modified="$ stat -f '%Sm' -t '%Y-%m-%d %H:%M:%S' "$file" 2 /dev/null || echo "-" " printf '%s\t%s\t%s\t%s\t%s\n' \ "$mtime epoch" "$size" "$added" "$modified" "$file" done \ | sort -nr "$TMP" } index macos full scan { local now cutoff now="$ date +%s " cutoff=$ now - HOURS 3600 Slower than Spotlight, but searches actual filesystem paths recursively. find "$DIR" -type f -print0 2 /dev/null \ | while IFS= read -r -d '' file; do mtime epoch="$ stat -f '%m' "$file" 2 /dev/null " || continue mtime epoch = cutoff || continue size="$ stat -f '%z' "$file" 2 /dev/null || echo "-" " added="$ stat -f '%SB' -t '%Y-%m-%d %H:%M:%S' "$file" 2 /dev/null || echo "-" " modified="$ stat -f '%Sm' -t '%Y-%m-%d %H:%M:%S' "$file" 2 /dev/null || echo "-" " printf '%s\t%s\t%s\t%s\t%s\n' \ "$mtime epoch" "$size" "$added" "$modified" "$file" done \ | sort -nr "$TMP" } build index { : "$TMP" echo "Indexing recent files..." echo "Directory: $DIR" echo "Recent window: last $HOURS hour s " echo if is gnu find; then index linux gnu find elif is macos && command -v mdfind /dev/null 2 &1 && "$FORCE SCAN" = "1" ; then index macos spotlight else index macos full scan fi local count count="$ wc -l < "$TMP" | tr -d ' ' " if "$count" == "0" ; then echo "No recent files found." echo echo "Tips:" echo " - Try a larger window: ./recent-files.sh '$DIR' 168" echo " - Search from root: sudo ./recent-files.sh / 24" echo " - On macOS, force real scan: FORCE SCAN=1 ./recent-files.sh '$DIR' 24" exit 0 fi } print page { local start end total total="$ wc -l < "$TMP" | tr -d ' ' " start=$ PAGE PAGE SIZE + 1 end=$ start + PAGE SIZE - 1 clear echo "Directory: $DIR" echo "Recent window: last $HOURS hour s " echo "Total files found: $total" echo "Page: $ PAGE + 1 " echo "Showing: $start-$end" echo printf "%-12s | %-19s | %-19s | %s\n" \ "Size bytes " "Added date" "Modified date" "File" printf "%-12s-+-%-19s-+-%-19s-+-%s\n" \ "------------" "-------------------" "-------------------" "------------------------------" sed -n "${start},${end}p" "$TMP" \ | awk -F '\t' '{ $1 = sort epoch $2 = size $3 = added date $4 = modified date $5+ = file path, in case path somehow contains tabs file=$5 for i=6; i<=NF; i++ file=file "\t" $i sub /\.. /, "", $3 sub /\.. /, "", $4 printf "%-12s | %-19s | %-19s | %s\n", $2, $3, $4, file }' } build index while true; do print page echo echo " n next page | p previous page | r rebuild | q quit" read -r -p "Choice: " choice case "$choice" in n|N PAGE=$ PAGE + 1 ;; p|P PAGE 0 && PAGE=$ PAGE - 1 ;; r|R PAGE=0 build index ;; q|Q exit 0 ;; echo "Unknown choice." sleep 1 ;; esac done script to view and clean the crash reports bash /bin/bash TARGET DIR="/System/Library/Caches/com.apple.coresymbolicationd" TARGET DATA="$TARGET DIR/data" show menu { echo echo "macOS coresymbolicationd cache tool" echo "Target: $TARGET DIR" echo echo "1 View / check files inside com.apple.coresymbolicationd" echo "2 Clean up com.apple.coresymbolicationd cache" echo "q Quit" echo } view cache { echo echo "Checking: $TARGET DIR" echo if -d "$TARGET DIR" ; then echo "Directory not found: $TARGET DIR" return fi echo "Total size:" sudo du -sh "$TARGET DIR" 2 /dev/null || echo "Unable to read size. Try running with sudo." echo echo "Files:" sudo ls -lah "$TARGET DIR" echo if -f "$TARGET DATA" ; then echo "Main data file:" sudo ls -lh "$TARGET DATA" echo echo "Approx size in GB:" sudo du -g "$TARGET DATA" 2 /dev/null else echo "No data file found at: $TARGET DATA" fi echo echo "Recently modified items:" sudo find "$TARGET DIR" -maxdepth 2 -type f -print0 2 /dev/null \ | sudo xargs -0 ls -lt 2 /dev/null \ | head -20 } clean cache { echo echo "This will delete files inside:" echo "$TARGET DIR" echo echo "It will NOT delete the folder itself." echo "macOS should recreate the cache when needed." echo read -r -p "Type CLEAN to continue: " confirm if "$confirm" = "CLEAN" ; then echo "Cancelled." return fi echo echo "Stopping coresymbolicationd if running..." sudo killall coresymbolicationd 2 /dev/null || true echo "Deleting cache contents..." if -d "$TARGET DIR" ; then sudo find "$TARGET DIR" -mindepth 1 -maxdepth 1 -exec rm -rf {} + echo "Cleanup complete." else echo "Directory not found: $TARGET DIR" fi echo echo "Current size:" sudo du -sh "$TARGET DIR" 2 /dev/null || echo "Cache directory may not exist until macOS recreates it." echo echo "Tip: reboot if the storage number in System Settings does not update immediately." } while true; do show menu read -r -p "Choose an option: " choice case "$choice" in 1 view cache ;; 2 clean cache ;; q|Q echo "Bye." exit 0 ;; echo "Invalid option." ;; esac done after deleting, try delete this as well to reset Codex. ~/Library/Saved Application State/com.openai.codex.savedState 11. I hit what appears to be the same Crashpad pending-dump growth issue, but at a much larger scale. Environment - Product: Codex Desktop app on macOS - Codex app version: 26.611.62324 - CFBundleVersion : 4028 - macOS: 15.6 24G84 - Architecture: arm64 - Current helper/Crashpad annotation observed from live process path: Electron/Chromium helper 149.0.7827.115 Observed disk usageThe large growth was under the legacy app-data path: ~/Library/Application Support/com.openai.codex/web/Crashpad/pending Before cleanup, this directory contained: 1,786,086 total entries 893,043 .dmp files 893,043 sidecar.json files 147,440,897,945 bytes total 137.32 GiB total 137.31 GiB from .dmp files File time range: oldest: 2026-06-01 11:55:53 newest: 2026-06-18 14:16:58 Daily distribution included multiple days above 13 GiB: 2026-06-06 13.17 GiB 2026-06-07 13.18 GiB 2026-06-08 13.18 GiB 2026-06-12 13.14 GiB 2026-06-13 13.17 GiB 2026-06-14 13.17 GiB 2026-06-15 11.66 GiB 2026-06-18 7.82 GiB Largest observed dump files were still relatively small: 782,272 bytes 739,984 bytes 705,456 bytes So the disk growth was caused by hundreds of thousands of small crash dumps, not a few large files. Cleanup resultAfter deleting pending files, the legacy path is now empty: ~/Library/Application Support/com.openai.codex/web/Crashpad/pending count=0 total mib=0.00 The currently running Codex app appears to use a different app-data path: ~/Library/Application Support/Codex/Crashpad Current size there is small: ~/Library/Application Support/Codex 223M ~/Library/Application Support/Codex/Crashpad 20K ~/Library/Application Support/Codex/Crashpad/pending 16K pending count=4 That path difference may be relevant: the unbounded growth happened under com.openai.codex/web/Crashpad , while the current running app uses Codex/Crashpad .I am not attaching .dmp files publicly because they may contain private memory, paths, or local state. I can collect additional metadata or share a dump through a safe maintainer-provided upload path if useful. 12. For anyone still trying to distinguish "old backlog" from "active dump loop", I would measure both Codex app-data paths separately before deleting broader app state: paths= "$HOME/Library/Application Support/com.openai.codex/web/Crashpad" "$HOME/Library/Application Support/Codex/Crashpad" for crash in "${paths @ }"; do echo "== $crash ==" -d "$crash" || { echo "missing"; continue; } du -sh "$crash" "$crash/pending" 2 /dev/null find "$crash/pending" -maxdepth 1 -type f 2 /dev/null | wc -l find "$crash/pending" -maxdepth 1 -type f -name ' .dmp' 2 /dev/null | wc -l find "$crash/pending" -maxdepth 1 -type f -name ' sidecar.json' 2 /dev/null | wc -l find "$crash/pending" -maxdepth 1 -type f -print0 2 /dev/null \ | xargs -0 stat -f '%Sm %z %N' -t '%Y-%m-%d %H:%M:%S' 2 /dev/null \ | sort | sed -n '1p;$p' done For cleanup, I would avoid deleting the whole Application Support/Codex directory unless a full local reset is intended. A narrower recovery path is: 1. Quit Codex. 2. Stop any Codex Crashpad handler that is still writing to that Crashpad database. 3. Move only Crashpad report buckets such as pending , new , completed , and attachments to Trash. 4. Restart Codex and watch the pending count for a few minutes. Example Trash-only version: osascript -e 'quit app "Codex"' 2 /dev/null || true pkill -f "browser crashpad handler. codex. /Crashpad" 2 /dev/null || true for crash in \ "$HOME/Library/Application Support/com.openai.codex/web/Crashpad" \ "$HOME/Library/Application Support/Codex/Crashpad"; do -d "$crash" || continue mkdir -p "$HOME/.Trash/Codex-Crashpad" for bucket in pending new completed attachments; do -d "$crash/$bucket" || continue find "$crash/$bucket" -mindepth 1 -maxdepth 1 -exec mv {} "$HOME/.Trash/Codex-Crashpad/" \; done done I would not attach .dmp files publicly; they may contain memory, local paths, prompts, or project state. Metadata like counts, size, oldest/newest timestamp, app version, and which path is still growing should be enough for most public triage.Disclosure: I maintain SafeDisk, a local-first storage cleanup/checklist project. I wrote up this specific Crashpad cleanup boundary here: https://www.getsafedisks.com/codex-crashpad-pending-dumps-disk-space?utm source=github&utm medium=issue-comment&utm campaign=codex-crashpad-disk-space&utm term=codex-crashpad-pending-dumps&utm content=openai-codex-25921 https://www.getsafedisks.com/codex-crashpad-pending-dumps-disk-space?utm source=github&utm medium=issue-comment&utm campaign=codex-crashpad-disk-space&utm term=codex-crashpad-pending-dumps&utm content=openai-codex-25921 If someone wants a private second read before deleting app state, that page now has a single on-page Deep Cleanup request form after the read-only checks. 13. My temporary macOS workaround: I’m clearing Codex’s pending Crashpad reports every 15 minutes to avoid the local buildup: /15 /usr/bin/find "$HOME/Library/Application Support/com.openai.codex/web/Crashpad/pending" -maxdepth 1 -type f -delete /dev/null 2 &1 || true Setup on macOS: crontab -e Add the cron line above, save, then verify: crontab -l This deletes only files directly inside: ~/Library/Application Support/com.openai.codex/web/Crashpad/pending 14. In case you also have that problem, there is yet another way this vibe coded app wastes disk space for me, see 25667 comment https://github.com/openai/codex/issues/25667 issuecomment-4758527276 15. I found a method which seems working well. clean up the folder as mentioned by @Jolg42 https://github.com/Jolg42 , then set it read-only. I tested few hours. Now Codex cannot write any trash to this folder any more. Crashpad/pending/ only bash /bin/bash set -euo pipefail TARGET="$HOME/Library/Application Support/com.openai.codex/web/Crashpad/pending" -d "$TARGET" || { echo "Folder does not exist: $TARGET"; exit 0; } echo "Found $TARGET" /usr/bin/find "$TARGET" -maxdepth 1 -type f -delete /dev/null 2 &1 || true chmod -R a-w "$TARGET" echo "Cleaned and made read-only: $TARGET" Crashpad/pending/ + com.openai.codex.code sign clone bash /bin/bash set -euo pipefail TARGET="$HOME/Library/Application Support/com.openai.codex/web/Crashpad/pending" -d "$TARGET" || { echo "Folder does not exist: $TARGET"; exit 0; } echo "Found $TARGET" /usr/bin/find "$TARGET" -maxdepth 1 -type f -delete /dev/null 2 &1 || true chmod -R a-w "$TARGET" echo "Cleaned and made read-only: $TARGET" ROOT="/private/var/folders" NAME="com.openai.codex.code sign clone" /usr/bin/find "$ROOT" -type d -name "$NAME" 2 /dev/null | while IFS= read -r dir; do echo "Found $dir" chmod -R u+w "$dir" 2 /dev/null || true /usr/bin/find "$dir" -mindepth 1 -delete 2 /dev/null || true chmod -R a-w "$dir" 2 /dev/null || true echo "Cleaned and made read-only: $dir" done 16. One caution on the chmod / read-only workaround above: I would treat it as an emergency brake, not the default cleanup path.Making only Crashpad/pending read-only can stop an active dump loop, but it also prevents Codex from writing crash reports and may hide the signal maintainers need. I would keep the scope narrow and avoid making these broader paths permanently read-only: - ~/Library/Application Support/Codex - ~/Library/Application Support/com.openai.codex - temporary com.openai.codex.code sign clone directories My safer order would be: 1. Quit Codex. 2. Move only Crashpad report buckets such as pending , new , completed , and attachments to Trash. 3. Restart Codex and watch whether pending starts growing again. 4. Use a read-only workaround only if it is actively refilling and you need to stop disk loss immediately. 5. Undo the read-only bit after the app/version issue is fixed. I updated the checklist here with the narrower warning and a small rollback snippet: https://www.getsafedisks.com/codex-crashpad-pending-dumps-disk-space?utm source=github&utm medium=followup&utm campaign=first-paid-cleanup&utm term=codex-crashpad-pending-dumps-disk-space&utm content=readonly-safety-followup https://www.getsafedisks.com/codex-crashpad-pending-dumps-disk-space?utm source=github&utm medium=followup&utm campaign=first-paid-cleanup&utm term=codex-crashpad-pending-dumps-disk-space&utm content=readonly-safety-followup 17. This is a serious problem, it is rapidly damaging hardware in computers where memory is not replaceable. It must be fixed asap. Reacted by Phuwanai Thummavet, kou kumotora, whatcall, WilsonPiper and Ahmed Khan 18. Still reproducible in the current unified ChatGPT/Codex desktop app, with the newer Crashpad database path. Environment - App: ChatGPT unified desktop app com.openai.codex - App version: 26.715.70719 - Build: 5650 - macOS: 15.7.4 24G517 - Architecture: Apple Silicon / arm64 - Chromium framework: 150.0.7871.124 - Crashpad database: ~/Library/Application Support/Codex/Crashpad Impact Crashpad/pending reached approximately 33.4 GiB . About 23.3 GiB had been generated during the last three days. Deleting pending reports recovered the disk space, but new paired dumps/sidecars began appearing immediately.The main ChatGPT window can remain alive while browser crashpad handler crashes and respawns repeatedly. macOS retained at least 50 handler crash reports on 2026-07-20 and 43 on 2026-07-21; the real number of Crashpad pending dumps was much higher. Exact handler failure FATAL:third party/crashpad/crashpad/handler/mac/exception handler server.cc:76 Check failed: kr == KERN SUCCESS. mach port request notification: os/kern invalid capability 20 The macOS .ips reports show: procName: browser crashpad handler responsibleProc: ChatGPT exception: EXC BREAKPOINT / SIGTRAP procPath: /Applications/ChatGPT.app/Contents/Frameworks/Codex Framework.framework/Versions/150.0.7871.124/Helpers/browser crashpad handler The earliest retained report on this machine is from 2026-07-20 08:17:09 +0800 , before build 5650 was installed on this machine. Its handler UUID is 4C4C44FF-5555-3144-A167-DF0A5F297DB2 .I also downloaded the official build 5538 26.715.31251 and compared its handler with build 5650. Both use Chromium 150.0.7871.124 , have the same Mach-O UUID, and have an identical SHA-256 hash for the unsigned code region. Therefore rolling back only to build 5538 is unlikely to avoid this failure. Workarounds tested - Launching with --disable-breakpad : did not prevent new Crashpad reports. - Denying execution of the handler: stopped pending dumps but caused repeated macOS “ChatGPT quit unexpectedly” reports/popups, so this is not viable. - Periodically deleting only Crashpad/pending : contains disk usage but does not fix the handler crash loop. No .dmp file is attached because it may contain private process memory. I can provide sanitized metadata or use a maintainer-provided private upload channel if needed.Could the desktop app either fix the handler startup/monitor-self failure, honor a supported crash-reporting opt-out, or enforce a strict retention/size limit on pending dumps? 19. App: ChatGPT unified desktop app 20. Same issue here. The crazy thing is that a pruner does ship with Crashpad, but it's not implemented here. I've seen this behaviour in other Electron apps, where the handler is wired up but the pruner is not, and if telemetry is turned off or blocked, these logs will just pile up in pending. 21. austinhutchison commentedon Aug 15, 2026 More actionsI’m seeing the same Crashpad pending-report growth on the current unified ChatGPT/Codex desktop app. Environment: - App: ChatGPT desktop app with Codex - App version: 26.803.61601 - Build: 6396 - macOS: 26.3.1 25D771280a - Architecture: arm64 The affected path is: ~/Library/Application Support/Codex/Crashpad/pending This directory grew to approximately 100 GB and roughly one million files. The files appear to be Crashpad pending reports, including .dmp files and sidecar metadata. The app remained usable while the directory grew.This appears to be the newer Codex/Crashpad path rather than the older:~/Library/Application Support/com.openai.codex/web/Crashpad/pending Deleting or moving the contents of Crashpad/pending recovers the disk space, but I have not yet established whether the directory regrows after cleanup.Could someone clarify whether the comment that “later macOS versions, at least 26.5,” fix this refers to a known macOS fix? If so, is macOS 26.5 expected to prevent the Crashpad handler failure, or is a Codex app update also required? I have not attached dump files because they may contain process memory, local paths, or other private data. I can provide sanitized counts, timestamps, or logs if that would help diagnose it. 22. I am seeing what appears to be the same class of issue on macOS, although my Crashpad database path is different: ~/Library/Application Support/Codex/Crashpad/pending My Codex Desktop version is 26.825.51511. The live Codex helper processes use: --user-data-dir=/Users/xxx/Library/Application Support/Codex --database=/Users/xxx/Library/Application Support/Codex/CrashpadThe pending directory contains the same paired .dmp and sidecar.json files described in this issue. Some sampled reports date back to June 2026, while others are from late August.The directory has become so large that even enumerating it is very slow: a bounded directory read did not finish within 8 seconds. A bounded scan managed to process only 118 entries about 10 MB before timing out, so this is not a normal small crash-report queue. It also appears to still be active rather than merely containing old leftovers: the pending directory modification time advanced from 2026-09-01 15:51:03 +0800 to 2026-09-01 15:51:34 +0800 during a 30-second read-only observation.Separately, when this happens I have also observed a process named ReportClash continuously consuming CPU. I do not yet know whether it is a Codex child/helper process or an unrelated process, so I am reporting it as a correlation only. 23. Still present on the current buildת adding a data point with different characteristics from the browser crashpad handler SIGTRAP loop in 36982 https://github.com/openai/codex/issues/36982 .Environment: ChatGPT.app 26.818.41509 build 6962 , bundle com.openai.codex, Codex Framework Chromium 151.0.7922.170, macOS 15.6.1. ~/Library/Application Support/Codex/Crashpad/pending is 174.6 GB, against 171 MB for everything else in Application Support/Codex combined — 99.9% of the directory. Uniform ~161 KB .dmp + sidecar.json pairs {"capture kind":"crash"} , so ≈1.08M dumps and 2M files. The directory's link count has saturated at 65535 and the directory entry itself is 65 MB. Differences from 36982 https://github.com/openai/codex/issues/36982 : No browser crashpad handler- .ips in ~/Library/Logs/DiagnosticReports 30 reports present, none from the handler . Not in a tight loop: last write to pending/ was 16 hours ago and the app has run since without adding to it. Dump annotations reference Utility and extension process types. Crashpad/ was created 2026-04-05, so ~1.1 GB/day averaged rather than 5–17 GB/day.Whatever generates the dumps, nothing prunes them. The retention bug looks separable from any specific crash loop: even a low crash rate reaches 175 GB given five months. A size or age cap on pending/ would bound the damage independently of fixing the crashers. 24. Still present on a much newer build, and I think I can supply the missing piece: why the loop sustains itself. Environment - Codex/ChatGPT.app 26.831.21537 , Codex Framework Chromium 152.0.7977.64 - macOS Tahoe 26.3.1 25D771280a , Apple Silicon The dumps are of the crash handler itselfEvery .dmp in Crashpad/pending is a minidump of browser crashpad handler , not of the app or a renderer. Each one contains the same fatal error: FATAL:third party/crashpad/crashpad/handler/mac/exception handler server.cc:76 Check failed: kr == KERN SUCCESS. mach port request notification: os/kern invalid capability 20 with annotations: executable path=/Applications/ChatGPT.app/Contents/Frameworks/Codex Framework.framework/Versions/152.0.7977.64/Helpers/browser crashpad handler --monitor-self-annotation=ptype=crashpad-handler ptype=crashpad-handler Because the handler is launched with --monitor-self-annotation , it monitors itself. So the sequence is: 1. handler calls mach port request notification , gets KERN INVALID CAPABILITY 20 2. hits the CHECK at exception handler server.cc:76 and dies 3. the self-monitor writes a minidump of the handler 4. the handler is relaunched, fails the identical check, goto 2 That's a loop with no base case, which is why the growth is perfectly linear rather than correlated with any app activity. Measured rateExactly 1 dump per second , 181,552 bytes each, plus a 24-byte sidecar.json : - ~3,600 dumps/hour ≈ 0.6 GB/hour - ≈ 15 GB/day while the app is running In my case it reached 240,966 files / 21 GB , and took a 228 GB disk down to 0 bytes free — to the point that unrelated tooling could no longer create files. completed/ was empty across all 240,966 reports, so nothing ever drains: uploads never succeed, and there is no cap or TTL on pending/ .macOS independently logged 387 .ips reports for the same helper under ~/Library/Logs/DiagnosticReports , oldest dated a week before I noticed anything. There is no user-visible signal at all until the disk fills. The trigger is upstream, the amplification is notThe mach port request notification / KERN INVALID CAPABILITY failure is not specific to this app — the identical error on Tahoe 26.3.1 is reported against other Chromium/Electron apps: - Claude Desktop crashes on macOS Tahoe 26.3.1 — Crashpad mach port request notification failure anthropics/claude-code 37230 https://github.com/anthropics/claude-code/issues/37230 - Integrated terminal on macOS freezes permanently after running a program that segfaults — Crashpad fatal error kills PTY host microsoft/vscode 282433 https://github.com/microsoft/vscode/issues/282433 So the CHECK failure itself is a Crashpad/Tahoe Mach IPC problem. But the unbounded disk consumption is independent of it: any repeatable handler-startup failure produces the same runaway, because the self-monitor treats the handler's own fatal CHECK as a reportable crash. Two independent mitigations 1. Don't let the self-monitor report the handler's own startup CHECK failure — or back off / rate-limit after N consecutive identical dumps. This alone breaks the loop regardless of the upstream cause. 2. Bound pending/ with a size cap or TTL so a silently failing upload path cannot fill the disk. Either one would have turned this from "disk at 0 bytes" into a log line. WorkaroundEmptying pending/ and then removing write permission from the directory stops the disk growth immediately the handler keeps retrying, but can no longer write : P=~/Library/"Application Support"/Codex/Crashpad/pending find "$P" -type f -delete chmod 500 "$P" Confirmed: growth stops, and nothing spills into new/ , completed/ , or attachments/ — the whole Crashpad directory stays at 20K. Reverse with chmod 700 .Reacted by Glenn 'devalias' Grant 25. Codex/ChatGPT.app 26. Adding a measured data point from 2026-10-05 on macOS 26.0.1 25A362 , arm64. ~/Library/Application Support/Codex/Crashpad/pending contained 1,212,428 files removed during cleanup: 110,728,502,872 logical bytes / 114,221,113,344 allocated bytes 114.22 GB . File mtimes ranged from 2026-07-27 through 2026-10-04. The dump-header timestamp histogram included 85,720 dumps on 2026-08-27 alone. This backlog was a major contributor to an almost-full 500 GB disk.I parsed ten retained minidump samples before deleting them. All ten named this main module: /Applications/ChatGPT.app/Contents/Frameworks/Codex Framework.framework/Versions/151.0.7922.76/Helpers/browser crashpad handler Each sampled dump was 182,624 bytes and identified ARM64. This corroborates reports here that the crash handler itself is being dumped, although the sample does not establish that every report had the same cause. The currently installed app is 26.930.21537 build 12776 , with framework 154.0.8037.93. The pending queue has stayed empty during today's cleanup while the app remains usable. I am reporting a historical backlog, not claiming that the current build is actively reproducing the loop or that the underlying bug is fixed. For local containment, I installed a LaunchAgent that runs every five minutes, expires reports older than 24 hours, and additionally caps each pending/completed queue at 64 report groups and 256 MiB. It groups matching UUID dump/sidecar files, gives fresh writes a two-minute grace period, and skips unknown files, symlinks, and files that change during inspection. This bounds retained diagnostic storage without making the database unwritable, but it does not repair a crashing helper. A built-in retention/size limit would prevent this degree of disk exhaustion independently of the handler failure. No raw minidumps are attached. 27. Still happening on the current build, and at a much larger scale. Measured 2026-10-15 to 2026-10-17: Environment - ChatGPT.app 26.1007.71326 build 20398 , Codex Framework Chromium 155.0.8059.40 - macOS 15.7.4 , Apple Silicon arm64 What I found Folder Size Files ~/Library/Application Support/com.openai.codex/web/Crashpad 180 GB 2,251,765 ~/Library/Application Support/Codex/Crashpad almost all of it in pending/ 143 GB 1,785,095 Total ~323 GB ~4.04 million That was about 35% of a 926 GB disk. Free space fell to 1.4 GB before I found it. Nothing in the app warned me. I only found it by running du over ~/Library .The app kept working the whole time, as others have reported here. So the dumps build up silently in the background with no limit. Cleanup With the app still running, I renamed both Crashpad folders and deleted the renamed copies. Free space went from 1.4 GB to 50+ GB within minutes, and the delete is still running millions of small files . Asks 1. Put a size or count cap on Crashpad/pending , with automatic pruning see also Add storage limits and automatic cleanup for Codex-generated data 51361 https://github.com/openai/codex/issues/51361 . 2. Stop the handler crash loop that produces the dumps \ app\ \ macOS\ \ 26.727.51351\ browser crashpad handler SIGTRAPs 2ms after launch, launchd respawns it, Crashpad/pending fills disk at ~17GB/day 36982 https://github.com/openai/codex/issues/36982 . 3. Show a warning in the app when its own data goes over a few GB. 28. ChatGPT.app Metadata Metadata Assignees Labels appIssues related to the Codex desktop app https://github.com/openai/codex/issues?q=state%3Aopen%20label%3A%22app%22 Issues related to the Codex desktop app bugSomething isn't working https://github.com/openai/codex/issues?q=state%3Aopen%20label%3A%22bug%22 Something isn't working performance https://github.com/openai/codex/issues?q=state%3Aopen%20label%3A%22performance%22