| commit | 0ffa46ea6b76c5d50344d77530f08be9f99b75a3 | [log] [tgz] |
|---|---|---|
| author | Nick Maniscalco <maniscalco@fuchsia.infra.roller.google.com> | Thu Jan 30 14:59:39 2025 -0800 |
| committer | Copybara-Service <copybara-worker@google.com> | Thu Jan 30 15:01:12 2025 -0800 |
| tree | 7802a40797ceb0108bf254a2e5e95d1d84f7c6dd | |
| parent | c0acdaecdb3ed0decdc41d1727db43c0c433117a [diff] |
[roll] Roll fuchsia [kernel][lockup] Refactor mp_all_cpu_startup_sync_hook Refactor mp_all_cpu_startup_sync_hook to use the new CanDumpRegistersAndBacktrace function and expand on rationale for why it's OK to panic there on production builds. On production builds, if one or more secondaries fail to start up, we'll attempt to dump diagnostics from the CPUs that failed to check-in and then panic. On development builds, we'll emit an oops instead. See the comments in the code for the rationale. Change x86's DumpRegistersAndBacktrace implementation to not require that interrupts are disabled. This fixes a potential bug where we might otherwise recursively panic. Manually tested by hacking up the secondary startup to force them to fail to check in, then verifying that we oops or panic. Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1194248 Original-Revision: 57951b353b3569540217b1e6efad83c6aa6545b0 GitOrigin-RevId: 9a1f0d4383e2f182624c1b073888351b04dda85e Change-Id: I452afdbf5c58ceda477135bf546d335cc9d55903
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