Re: Possible io_uring bug in PA-RISC kernel 6.1.46

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On 2023-08-27 4:41 p.m., Helge Deller wrote:
On 8/27/23 22:35, John David Anglin wrote:
On 2023-08-27 7:25 a.m., Vidra.Jonas@xxxxxxxxx wrote:
The issue is that a call to
`io_uring_enter(fd, 2, 2, IORING_ENTER_GETEVENTS)`
returns 0, and libuv reacts to that by aborting, probably on this line:
https://github.com/libuv/libuv/blob/65dc822d6c20a9130fa100c7b46d751f8cf4d233/src/unix/linux.c#L1252
(I'm saying probably, because gdb seems to be buggy on my machine and I
don't really trust its output, so I rely on strace instead, but that
doesn't support backtraces on the PA-RISC.)
I have the attached io_uring patch on 6.1.46.  It's back ported from 6.4.

libuv make check was successful on my system.

Did the libuv check failed on 6.1.46 for you?
No. It was successful.
I just tried plain 6.1.49 and my machine crashed....
Dave

--
John David Anglin  dave.anglin@xxxxxxxx




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