[release/10.0] [Mono]: Fix stackwalk callbacks calling mono_jit_info_get_method in async signal safe mode.#123792
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steveisok merged 1 commit intorelease/10.0from Feb 7, 2026
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…nc signal safe mode. As part of d34ef7e a number of additional stack walking scenarios that could run as async signal safe (called from signal handlers), was flag as being async, preventing loading of full MonoJitInfo. An AOT methods MonoJitInfo loaded when a thread runs in async signal safe mode can't be passed to mono_jit_info_get_method or it will trigger the following assert: Assertion jit-info.c:918 (!ji->async) There are some issues reporting this assert for .net10, like: #122797 After looking over the changes done in d34ef7e it appears that two scenarios, get_thread_dump and mono_handle_native_crash could hit scenarios where it would call mono_jit_info_get_method using MonoJitInfo loaded under async signal safe mode. This PR fixes both these scenarios making sure they correctly check the async state of MonoJitInfo before calling mono_jit_info_get_method. For more details, #122797 (comment).
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Backport of #123346 to release/10.0
/cc @lateralusX
Customer Impact
Fixes an assert (Assertion jit-info.c:918 (!ji->async)) that can occur when stackwalk callbacks call mono_jit_info_get_method in async signal safe mode. This affects scenarios like get_thread_dump and mono_handle_native_crash on AOT methods.
Fixes #122797
Regression
Regressed in .NET 10 due to d34ef7e which added additional stack walking scenarios that could run as async signal safe.
Testing
Manually verified.
Risk
Low
The changes are minimal (2 files changed, 3 insertions, 3 deletions) and correctly check the async state of MonoJitInfo before calling mono_jit_info_get_method.