https://bugs.kde.org/show_bug.cgi?id=484742
--- Comment #2 from Joost VandeVondele ---
ok, seems to be related to the +dotprod part of the isa (which we detect based
on the asimddp flag). Probably
acc = vdotq_s32(acc, a0, b0);
or
output[i] = vaddvq_s32(sum);
--
You are
https://bugs.kde.org/show_bug.cgi?id=484742
--- Comment #1 from Joost VandeVondele ---
Also reproduces on a Raspberry Pi 5:
Raspberry Pi 5
$ cat /proc/cpuinfo
processor : 0
BogoMIPS: 108.00
Features: fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp
asimdhp cpuid
https://bugs.kde.org/show_bug.cgi?id=484742
Bug ID: 484742
Summary: unhandled instruction 0x4E9096B7
Classification: Developer tools
Product: valgrind
Version: 3.22.0
Platform: Other
OS: Linux
Status: REPORTED
https://bugs.kde.org/show_bug.cgi?id=356457
--- Comment #22 from Joost VandeVondele ---
In my case, the issue has disappeared, and the 'only' thing changed is that the
server has been updated and is now running Red Hat Enterprise Linux Server
release 7.2, which for example includ
https://bugs.kde.org/show_bug.cgi?id=356457
--- Comment #14 from Joost VandeVondele ---
Also no luck with --sanity-level=4
The fact that it is not reproducible on command is indeed not simplifying this.
I wonder if this could be related to something external to valgrind triggering
this
https://bugs.kde.org/show_bug.cgi?id=356457
--- Comment #12 from Joost VandeVondele ---
Since the error is recurring, I have now tried to run the self-hosting. Running
:
/data/vjoost/test/outer/install/bin/valgrind --sim-hints=enable-outer
--trace-children=yes --smc-check=all-non-file --run
https://bugs.kde.org/show_bug.cgi?id=356457
--- Comment #11 from Joost VandeVondele ---
Created attachment 96783
--> https://bugs.kde.org/attachment.cgi?id=96783&action=edit
self hosting output 3
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https://bugs.kde.org/show_bug.cgi?id=356457
--- Comment #10 from Joost VandeVondele ---
Created attachment 96782
--> https://bugs.kde.org/attachment.cgi?id=96782&action=edit
self-hosting output 2
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https://bugs.kde.org/show_bug.cgi?id=356457
--- Comment #8 from Joost VandeVondele ---
The failures are observed on RedHatEnterpriseServer Release:6.7
over the weekend, I have been running valgrind with as an argument essentially
just a start of the relevant binary (and have it print the
https://bugs.kde.org/show_bug.cgi?id=356457
--- Comment #3 from Joost VandeVondele ---
just happened again, but it is really rare. (this is a 12 core server running
valgrind +-12h a day... and this seems to happen every +- 10 days). Is any of
the suggestions mentioned above possible without
https://bugs.kde.org/show_bug.cgi?id=356457
Bug ID: 356457
Summary: valgrind: m_mallocfree.c:2042 (vgPlain_arena_free):
Assertion 'blockSane(a, b)' failed.
Product: valgrind
Version: unspecified
Platform: Compiled Sources
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