Bug 461926

Summary:	Receive "unhandled amd64-linux syscall: 434" in Gtk program
Product:	[Developer tools] valgrind	Reporter:	rastersoft <rastersoft>
Component:	general	Assignee:	Julian Seward <jseward>
Status:	RESOLVED DUPLICATE
Severity:	normal	CC:	mark, pjfloyd
Priority:	NOR
Version First Reported In:	3.19.0
Target Milestone:	---
Platform:	Debian unstable
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description rastersoft 2022-11-16 23:06:39 UTC

SUMMARY

When running a Gtk program and clicking on a button, I receive the message: "unhandled amd64-linux syscall: 434", and "Warning: noted but unhandled ioctl 0x5441 with no size/direction hints."

STEPS TO REPRODUCE

1. Download "tiled_widget" ( https://gitlab.com/rastersoft/tiled-widget ) and build the example (just type "make")
2. Run it with "valgrind ./test_terminal"
3. Split the tiles using the buttons with the vertical ("|") and horizontal ("-") bars, or close them with the "X" buttons. 

OBSERVED RESULT

Every time one of the "split" buttons is pressed, the above message appears in Valgrind.

EXPECTED RESULT

Valgrind should recognize all the syscalls and IOCTLs.

SOFTWARE/OS VERSIONS
Debian Unstable with Gnome Shell 43.

ADDITIONAL INFORMATION

Comment 1 Paul Floyd 2022-11-17 08:33:50 UTC

I recently pushed a change that should stop the "no size/direction" message. For that you'll either have to build your own Valgrind, hope that your package maintainer merges that change or wait for 3.21 to be packaged.

According to https://github.com/torvalds/linux/blob/master/arch/x86/entry/syscalls/syscall_64.tbl

syscall 434 is

434	common	pidfd_open		sys_pidfd_open

I need to check what this syscall does,

Comment 2 Mark Wielaard 2023-04-19 23:33:55 UTC


*** This bug has been marked as a duplicate of bug 464609 ***