[v10.x backport] inspector: more conservative minimum stack size #33720
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PTHREAD_STACK_MIN is 2 KB with musl, which is too small to safely receive signals. PTHREAD_STACK_MIN + MINSIGSTKSZ is 8 KB on arm64, which is the musl architecture with the biggest MINSIGSTKSZ so let's use that as a lower bound and let's quadruple it just in case. Backport-PR-URL: nodejs#33720 PR-URL: nodejs#27855 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Eugene Ostroukhov <eostroukhov@google.com> Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Rich Trott <rtrott@gmail.com>
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bnoordhuis
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addaleax
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Would also like this patch merged into v10. |
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@nodejs/lts Any chance that we get this into a release? |
I'll try to include this in the next 10.x release. |
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PTHREAD_STACK_MIN is 2 KB with musl, which is too small to safely receive signals. PTHREAD_STACK_MIN + MINSIGSTKSZ is 8 KB on arm64, which is the musl architecture with the biggest MINSIGSTKSZ so let's use that as a lower bound and let's quadruple it just in case. Backport-PR-URL: #33720 PR-URL: #27855 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Eugene Ostroukhov <eostroukhov@google.com> Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Rich Trott <rtrott@gmail.com>
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Landed in aaf2f82. |
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This was referenced Jul 9, 2020
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We see crashes in some musl docker environments caused by stack overflow in inspector thread. This happens during signal handling which is used as fallback by musl-libc in case syscall membarrier is not allowed by the secprofile.
fyi @bnoordhuis - the initial PR was done by you
PTHREAD_STACK_MIN is 2 KB with musl, which is too small to safely
receive signals. PTHREAD_STACK_MIN + MINSIGSTKSZ is 8 KB on arm64,
which is the musl architecture with the biggest MINSIGSTKSZ so let's
use that as a lower bound and let's quadruple it just in case.
PR-URL: #27855
Reviewed-By: Colin Ihrig cjihrig@gmail.com
Reviewed-By: James M Snell jasnell@gmail.com
Reviewed-By: Eugene Ostroukhov eostroukhov@google.com
Reviewed-By: Anna Henningsen anna@addaleax.net
Reviewed-By: Rich Trott rtrott@gmail.com