Bug: Intermittent [unhandlable oom] Failed to allocate slots while tenuring. [@ xul.dll + 0x0444ca8d] | single tracking bug
Status: NEW
Priority: --
Created: 2025-02-10 20:01:43+00:00
Resolved: 2025-03-04 23:02:24+00:00

**Filed by:** nfay [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=494247732&repo=mozilla-esr115
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/PBq83UwvQ1K3GOCaHGiG9Q/runs/0/artifacts/public/logs/live_backing.log

---
```
[task 2025-02-10T19:16:27.174Z] 19:16:27     INFO - mozcrash Downloading symbols from: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/F_PTWQKdQSOW7BY-pRthVw/artifacts/public/build/target.crashreporter-symbols.zip
[task 2025-02-10T19:16:51.878Z] 19:16:51     INFO - mozcrash Copy/paste: C:/Users/task_173921327782617/fetches\minidump-stackwalk\minidump-stackwalk.exe --symbols-url=https://symbols.mozilla.org/ --cyborg=C:\Users\task_173921327782617\AppData\Local\Temp\tmpjcymjuub\6a1aa808-9818-4ec1-8251-18b641ab54f0.trace C:\Users\task_173921327782617\AppData\Local\Temp\tmpc3ilxy8y.mozrunner\minidumps\6a1aa808-9818-4ec1-8251-18b641ab54f0.dmp C:\Users\task_173921327782617\AppData\Local\Temp\tmpr6wc19a2
[task 2025-02-10T19:16:55.269Z] 19:16:55     INFO - mozcrash Saved minidump as C:\Users\task_173921327782617\build\blobber_upload_dir\6a1aa808-9818-4ec1-8251-18b641ab54f0.dmp
[task 2025-02-10T19:16:55.269Z] 19:16:55     INFO - mozcrash Saved app info as C:\Users\task_173921327782617\build\blobber_upload_dir\6a1aa808-9818-4ec1-8251-18b641ab54f0.extra
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO - PROCESS-CRASH | [unhandlable oom] Failed to allocate slots while tenuring. [@ xul.dll + 0x0444ca8d] | browser/components/preferences/tests/browser_security-2.js 
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO - Mozilla crash reason: [unhandlable oom] Failed to allocate slots while tenuring.
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO - Crash dump filename: C:\Users\task_173921327782617\AppData\Local\Temp\tmpc3ilxy8y.mozrunner\minidumps\6a1aa808-9818-4ec1-8251-18b641ab54f0.dmp
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO - Operating system: Windows NT
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -                   6.1.7601 Service Pack 1
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO - CPU: x86
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      GenuineIntel family 6 model 85 stepping 7
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      4 CPUs
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO - 
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO - Crash reason:  EXCEPTION_BREAKPOINT
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO - Crash address: 0x60bcca8d
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO - Process uptime: 304 seconds
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO - 
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO - Thread 0  (crashed)
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -  0  xul.dll + 0x444ca8d
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      eip = 0x60bcca8d    esp = 0x0028df1c    ebp = 0x0028e324    ebx = 0x4366c0f8
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      esi = 0x0028df1c    edi = 0x622f60a6    eax = 0x68663b18    ecx = 0x67498f30
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      edx = 0x6854036c eflags = 0x00000202
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -     Found by: given as instruction pointer in context
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -  1  xul.dll + 0x444d9e9
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      eip = 0x60bcd9ea    esp = 0x0028e32c    ebp = 0x0028e338
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -     Found by: previous frame's frame pointer
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -  2  xul.dll + 0x1be0d93
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      eip = 0x5e360d94    esp = 0x0028e340    ebp = 0x0028e394
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -     Found by: previous frame's frame pointer
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -  3  xul.dll + 0x1bbee4d
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      eip = 0x5e33ee4e    esp = 0x0028e39c    ebp = 0x0028e4b0
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -     Found by: previous frame's frame pointer
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -  4  xul.dll + 0x125bc37
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      eip = 0x5d9dbc38    esp = 0x0028e4b8    ebp = 0x0028e4e4
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -     Found by: previous frame's frame pointer
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -  5  xul.dll + 0x451bd9b
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      eip = 0x60c9bd9c    esp = 0x0028e4ec    ebp = 0x0028e4f4
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -     Found by: previous frame's frame pointer
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -  6  xul.dll + 0x126efe6
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      eip = 0x5d9eefe7    esp = 0x0028e4fc    ebp = 0x0028e504
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -     Found by: previous frame's frame pointer
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -  7  xul.dll + 0x1bac20d
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      eip = 0x5e32c20e    esp = 0x0028e50c    ebp = 0x0028e6a0
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -     Found by: previous frame's frame pointer
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -  8  xul.dll + 0x125c6c7
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      eip = 0x5d9dc6c8    esp = 0x0028e6a8    ebp = 0x0028e788
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -     Found by: previous frame's frame pointer
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -  9  xul.dll + 0x125ce4c
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      eip = 0x5d9dce4d    esp = 0x0028e790    ebp = 0x0028e810
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -     Found by: previous frame's frame pointer
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO - 10  xul.dll + 0xaf60bb
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      eip = 0x5d2760bc    esp = 0x0028e818    ebp = 0x0028e83c
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -     Found by: previous frame's frame pointer
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO - 11  xul.dll + 0xaf619c
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      eip = 0x5d27619d    esp = 0x0028e844    ebp = 0x0028e85c
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -     Found by: previous frame's frame pointer
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO - 12  xul.dll + 0xaa10f9
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      eip = 0x5d2210fa    esp = 0x0028e864    ebp = 0x0028ea14
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -     Found by: previous frame's frame pointer
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO - 13  xul.dll + 0xaa49f2
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      eip = 0x5d2249f3    esp = 0x0028ea1c    ebp = 0x0028ea34
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -     Found by: previous frame's frame pointer
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO - 14  xul.dll + 0x718338
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      eip = 0x5ce98339    esp = 0x0028ea3c    ebp = 0x0028eab4
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -     Found by: previous frame's frame pointer
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO - 15  xul.dll + 0x718874
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      eip = 0x5ce98875    esp = 0x0028eabc    ebp = 0x0028eac0
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -     Found by: previous frame's frame pointer
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO - 16  xul.dll + 0x72a7d6
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      eip = 0x5ceaa7d7    esp = 0x0028eac8    ebp = 0x0028ec34
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -     Found by: previous frame's frame pointer
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO - 17  xul.dll + 0x71ea65
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      eip = 0x5ce9ea66    esp = 0x0028ec3c    ebp = 0x0028edc4
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -     Found by: previous frame's frame pointer
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO - 18  xul.dll + 0x18c9dc4
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      eip = 0x5e049dc5    esp = 0x0028edcc    ebp = 0x0028ef68
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -     Found by: previous frame's frame pointer
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO - 19  xul.dll + 0x18cbd93
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      eip = 0x5e04bd94    esp = 0x0028ef70    ebp = 0x0028efe4
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -     Found by: previous frame's frame pointer
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO - 20  xul.dll + 0x176fce0
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      eip = 0x5deefce1    esp = 0x0028efec    ebp = 0x0028f290
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -     Found by: previous frame's frame pointer
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO - 21  xul.dll + 0x190191f
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      eip = 0x5e081920    esp = 0x0028f298    ebp = 0x0028f34c
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -     Found by: previous frame's frame pointer
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO - 22  xul.dll + 0x8b8ebe
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      eip = 0x5d038ebf    esp = 0x0028f354    ebp = 0x0028f384
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -     Found by: previous frame's frame pointer
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO - 23  xul.dll + 0x1995e
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      eip = 0x5c79995f    esp = 0x0028f38c    ebp = 0x0028f3a8
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -     Found by: previous frame's frame pointer
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO - 24  xul.dll + 0x12ba34
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      eip = 0x5c8aba35    esp = 0x0028f3b0    ebp = 0x0028f3b8
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -     Found by: previous frame's frame pointer
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO - 25  xul.dll + 0x12aea3
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      eip = 0x5c8aaea4    esp = 0x0028f3c0    ebp = 0x0028f4fc
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -     Found by: previous frame's frame pointer
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO - 26  xul.dll + 0x433d58d
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      eip = 0x60abd58e    esp = 0x0028f504    ebp = 0x0028f51c
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -     Found by: previous frame's frame pointer
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO - 27  xul.dll + 0x43a73f7
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      eip = 0x60b273f8    esp = 0x0028f524    ebp = 0x0028f7a8
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -     Found by: previous frame's frame pointer
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO - 28  xul.dll + 0x43a8060
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      eip = 0x60b28061    esp = 0x0028f7b0    ebp = 0x0028f7f0
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -     Found by: previous frame's frame pointer
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO - 29  xul.dll + 0x1eb7967
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      eip = 0x5e637968    esp = 0x0028f7f8    ebp = 0x0028f858
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -     Found by: previous frame's frame pointer
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO - 30  xul.dll + 0x43abdc0
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      eip = 0x60b2bdc1    esp = 0x0028f860    ebp = 0x0028f86c
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -     Found by: previous frame's frame pointer
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO - 31  firefox.exe!do_main(int, char**, char**) [nsBrowserApp.cpp:200bb90457a2e986131a8972fe5eaed1640f63e3 : 227]
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -     Found by: inlining
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO - 32  firefox.exe!NS_internal_main(int, char**, char**) [nsBrowserApp.cpp:200bb90457a2e986131a8972fe5eaed1640f63e3 : 445]
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -     Found by: inlining
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO - 33  firefox.exe!wmain(int, wchar_t**) [nsWindowsWMain.cpp:200bb90457a2e986131a8972fe5eaed1640f63e3 : 167 + 0x18e]
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      eip = 0x00f43826    esp = 0x0028f874    ebp = 0x0028f9f8
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -     Found by: previous frame's frame pointer
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO - 34  firefox.exe!invoke_main() [exe_common.inl : 90]
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -     Found by: inlining
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO - 35  firefox.exe!__scrt_common_main_seh() [exe_common.inl : 288 + 0x1b]
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      eip = 0x00f547ac    esp = 0x0028fa00    ebp = 0x0028fa40    ebx = 0x7ffd7000
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      esi = 0x004bbaa8    edi = 0x004bbcf0
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -     Found by: call frame info
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO - 36  kernel32.dll!BaseThreadInitThunk + 0x11
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      eip = 0x764eef3c    esp = 0x0028fa48    ebp = 0x0028fa4c    ebx = 0x7ffd7000
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      esi = 0x004bbaa8    edi = 0x004bbcf0
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -     Found by: call frame info
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO - 37  ntdll.dll!__RtlUserThreadStart + 0x26
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      eip = 0x77993618    esp = 0x0028fa54    ebp = 0x0028fa8c    ebx = 0x7ffd7000
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      esi = 0x004bbaa8    edi = 0x004bbcf0
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -     Found by: call frame info
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO - 38  ntdll.dll!_RtlUserThreadStart + 0x1a
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      eip = 0x779935eb    esp = 0x0028fa94    ebp = 0x0028faa4    ebx = 0x7ffd7000
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -      esi = 0x004bbaa8    edi = 0x004bbcf0
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO -     Found by: call frame info
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO - 
[task 2025-02-10T19:16:55.722Z] 19:16:55     INFO - Thread 1 
```