Bug 408858

Summary:	Add new io_uring_register, setup, enter syscalls
Product:	[Developer tools] valgrind	Reporter:	zbbjornson
Component:	general	Assignee:	Julian Seward <jseward>
Status:	RESOLVED FIXED
Severity:	normal	CC:	boxerab, mark, xonatius, zbbjornson
Priority:	NOR
Version First Reported In:	3.15 SVN
Target Milestone:	---
Platform:	Ubuntu
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description zbbjornson 2019-06-18 02:49:56 UTC

SUMMARY

io_uring adds three new Linux syscalls that Valgrind doesn't support yet:

io_uring_setup 425
io_uring_enter 426
io_uring_register 427

Thanks!

Comment 1 Julian Seward 2019-12-28 16:19:33 UTC

Do you have a patch that fixes this, or any test cases?

Comment 2 zbbjornson 2020-04-10 21:09:13 UTC

I don't have a usable patch unfortunately. (Have a sloppy one that I could try to rework sometime.)

The easiest test is probably the liburing test suite:

https://github.com/axboe/liburing

or fio with ioengine=io_uring:

https://github.com/axboe/fio

Comment 3 Mark Wielaard 2020-04-29 12:15:39 UTC

(In reply to zbbjornson from comment #2)
> I don't have a usable patch unfortunately. (Have a sloppy one that I could
> try to rework sometime.)

Feel free to post your "sloppy" patch. It could help someone come up with a full/real one.

LWN has some more background on io_uring:
https://lwn.net/Kernel/Index/#io_uring

Comment 4 Mark Wielaard 2020-11-08 20:51:18 UTC

*** Bug 428858 has been marked as a duplicate of this bug. ***

Comment 5 Daniil 2020-12-28 20:44:03 UTC

Looks like the new syscalls were added in https://sourceware.org/git/?p=valgrind.git;a=commit;h=97fa86915e717dc68123f05b668b73adfe8885a9

This commit, however, was added after 3.15 version, but it should be fixed in 3.16.