56 lines
2.3 KiB
Diff
56 lines
2.3 KiB
Diff
From e8c83a655d47f7ca46c6e730364bca09716dca67 Mon Sep 17 00:00:00 2001
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From: "Richard W.M. Jones" <rjones@redhat.com>
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Date: Mon, 20 Jun 2022 20:24:27 +0100
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Subject: [PATCH] ocaml: Add further valgrind suppression
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After discussion with the OCaml team we think these are both bugs in
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valgrind, not OCaml, but we still need a suppression.
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==4145632== Syscall param sigaltstack(ss) points to uninitialised byte(s)
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==4145632== at 0xCC5E24B: sigaltstack (syscall-template.S:120)
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==4145632== by 0xD7F46CC: caml_stop_stack_overflow_detection (in /home/rjones/d/nbdkit/tests/test-ocaml-plugin.so)
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==4145632== by 0xD7F277E: caml_startup_common (in /home/rjones/d/nbdkit/tests/test-ocaml-plugin.so)
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==4145632== by 0xD7F27CC: caml_startup (in /home/rjones/d/nbdkit/tests/test-ocaml-plugin.so)
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==4145632== by 0xC986891: constructor (plugin.c:64)
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==4145632== by 0xC133CED: call_init (dl-init.c:70)
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==4145632== by 0xC133DDB: _dl_init (dl-init.c:117)
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==4145632== by 0xCD72A73: _dl_catch_exception (dl-error-skeleton.c:182)
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==4145632== by 0xC13A955: dl_open_worker (dl-open.c:808)
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==4145632== by 0xCD72A1D: _dl_catch_exception (dl-error-skeleton.c:208)
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==4145632== by 0xC13ACEB: _dl_open (dl-open.c:883)
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==4145632== by 0xCCA7EC9: dlopen_doit (dlopen.c:56)
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==4145632== by 0xCD72A1D: _dl_catch_exception (dl-error-skeleton.c:208)
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==4145632== by 0xCD72AD2: _dl_catch_error (dl-error-skeleton.c:227)
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==4145632== by 0xCCA79DE: _dlerror_run (dlerror.c:138)
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==4145632== by 0xCCA7F67: dlopen@@GLIBC_2.34 (dlopen.c:71)
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==4145632== by 0x10F775: main (main.c:833)
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==4145632== Address 0x1ffeffaca0 is on thread 1's stack
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==4145632== in frame #1, created by caml_stop_stack_overflow_detection (???:)
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(cherry picked from nbdkit commit dba71bf2be6dbcc1585f36a6779395c9fe2cc49d)
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(cherry picked from commit 9057e474b5de78d3a37f063ab197a5989f4294fb)
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---
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valgrind/ocaml.suppressions | 8 ++++++++
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1 file changed, 8 insertions(+)
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diff --git a/valgrind/ocaml.suppressions b/valgrind/ocaml.suppressions
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index 202ddc5..3a660ee 100644
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--- a/valgrind/ocaml.suppressions
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+++ b/valgrind/ocaml.suppressions
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@@ -94,3 +94,11 @@
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fun:sigaltstack
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fun:caml_terminate_signals
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}
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+
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+{
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+ caml_stop_stack_overflow_detection_uninitialized_sigaltstack
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+ Memcheck:Param
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+ sigaltstack(ss)
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+ fun:sigaltstack
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+ fun:caml_stop_stack_overflow_detection
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+}
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--
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2.31.1
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