https://bugs.kde.org/show_bug.cgi?id=417075
Bug ID: 417075
Summary: pwritev(vector[...]) suppression ignored
Product: valgrind
Version: 3.15 SVN
Platform: Fedora RPMs
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: memcheck
Assignee: jsew...@acm.org
Reporter: l...@yuriev.ru
Target Milestone: ---
SUMMARY
memcheck 3.13 (ubuntu) works fine, but memcheck 3.15 (fedora 31) don't handle
suppression for pwritev syscall.
STEPS TO REPRODUCE
1. git clone https://github.com/leo-yuriev/libmdbx.git
2. make -C libmdbx memcheck
3. cat libmdbx/valgrind-*.log | less
OBSERVED RESULT
Error report:
==149931== Syscall param pwritev(vector[0]) points to uninitialised byte(s)
==149931== at 0x4D2F5CD: pwritev (in /usr/lib64/libc-2.30.so)
==149931== by 0x486B47D: mdbx_pwritev (osal.c:790)
==149931== by 0x486910E: mdbx_flush_iov (core.c:7507)
==149931== by 0x486910E: mdbx_page_flush (core.c:7566)
EXPECTED RESULT
Suppression works as expected.
SOFTWARE/OS VERSIONS
$ lsb_release -a
LSB Version: :core-4.1-amd64:core-4.1-noarch
Distributor ID: Fedora
Description: Fedora release 31 (Thirty One)
Release: 31
Codename: ThirtyOne
ADDITIONAL INFORMATION
Suppression:
{
pwrite-page-flush
Memcheck:Param
pwritev(vector[...])
fun:pwritev
...
fun:mdbx_page_flush
}
https://raw.githubusercontent.com/leo-yuriev/libmdbx/master/test/valgrind_suppress.txt
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