https://bugs.kde.org/show_bug.cgi?id=464185
Bug ID: 464185
Summary: readlink("/proc/self/exe") failed when debug
systemd(pid 1)
Classification: Developer tools
Product: valgrind
Version: 3.16.1
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: memcheck
Assignee: jsew...@acm.org
Reporter: heng....@windriver.com
Target Milestone: ---
SUMMARY
By the https://github.com/systemd/systemd/issues/2187, I try to debug systemd
(pid 1) memory leak using valgrind.
Kernel boot command is below:
/usr/bin/valgrind --leak-check=full --log-file=/valgrind.out
/lib/systemd/systemd
Boot log and result of "/usr/bin/valgrind /lib/systemd/systemd"
OBSERVED RESULT
[ 11.653187] /usr/bin/valgrind --leak-check=full --log-file=/valgrind.out
/lib/systemd/systemdsh: cannot set terminal process group (-1): Inappropriate
ioctl for device
sh: no job control in this shell
sh-4.3# /usr/bin/valgrind /lib/systemd/systemd
valgrind: warning (non-fatal): readlink("/proc/self/exe") failed.
valgrind: continuing, however --trace-children=yes will not work.
--247:0: aspacem Valgrind: FATAL: can't open /proc/self/maps
--247:0: aspacem Exiting now.
EXPECTED RESULT
In this link https://github.com/systemd/systemd/issues/2187, valgrind can debug
systemd(pid 1)
SOFTWARE/OS VERSIONS
Linux: 2.6 or yocto dunfell
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