Bug 464184

Summary:	readlink("/proc/self/exe") failed when debug systemd(pid 1)
Product:	[Developer tools] valgrind	Reporter:	hguo3 <heng.guo>
Component:	memcheck	Assignee:	Julian Seward <jseward>
Status:	RESOLVED DUPLICATE
Severity:	normal	CC:	mark
Priority:	NOR
Version First Reported In:	3.16.1
Target Milestone:	---
Platform:	Other
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description hguo3 2023-01-12 09:26:50 UTC

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

Comment 1 Mark Wielaard 2023-01-12 13:03:58 UTC


*** This bug has been marked as a duplicate of bug 464185 ***