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Type: Task
Resolution: Unresolved
Priority: Major - P3
Fix Version/s: None
Affects Version/s: None
Component/s: None
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Assigned Teams:

Workload Resilience
CAR Domain/s:
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An update to Linux kernel 6.19 has caused consistent startup issues (crashes) with MongoDB 8.0+. Strong confidence this issue is in the TCMalloc repo, related to TCMalloc violating the upstream rseq ABI. TCMalloc contributors are aware of this issue.

Impact
None of our Atlas fleet is affected, since Atlas runs on Linux kernel version 6.1. We do not have plans to upgrade our kernel version at this time.
Any customer downloading MongoDB 8.0+ and using kernel version 6.19 will get crashes upon trying to run MongoDB. This includes installing using package managers or Docker.

duplicates

SERVER-120238 SIGSEGV (Exit Code 139) exactly 30s after start on AMD Zen 5 due to hardware Shadow Stacks (user_shstk) clashing with coroutines

Closed

SERVER-121377 mongod crashes with SEGV in mongo::admission::ThroughputProbing::_run exactly 60 seconds after startup

Closed

SERVER-121885 Mongod crashing on Linux Kernel 6.19.8 - even after setting < Environment="GLIBC_TUNABLES=glibc.pthread.rseq=0:glibc.cpu.hwcaps=-SHSTK">

Closed

is related to

SERVER-120238 SIGSEGV (Exit Code 139) exactly 30s after start on AMD Zen 5 due to hardware Shadow Stacks (user_shstk) clashing with coroutines

Closed

Assignee:: Unassigned
Reporter:: Jason Chan
Participants:: Jason Chan
Votes:: 2 Vote for this issue
Watchers:: 9 Start watching this issue

Created:: Mar 17 2026 10:16:36 PM UTC
Updated:: Mar 20 2026 08:35:13 PM UTC

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