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From: Jens Axboe <[email protected]>
To: John David Anglin <[email protected]>,
	Helge Deller <[email protected]>,
	[email protected], [email protected],
	James Bottomley <[email protected]>
Subject: Re: io_uring failure on parisc with VIPT caches
Date: Wed, 15 Feb 2023 12:00:43 -0700	[thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>

On 2/15/23 10:01?AM, Jens Axboe wrote:
> On 2/15/23 9:38?AM, John David Anglin wrote:
>> On 2023-02-15 10:56 a.m., Jens Axboe wrote:
>>>> Is there maybe somewhere a more detailled testcase which I could try too?
>>> Just git clone liburing:
>>>
>>> git clone git://git.kernel.dk/liburing
>>>
>>> and run make && make runtests in there, that'll go through the whole
>>> regression suite.
>> Here are test results for Debian liburing 2.3-3 (hppa) with Helge's original patch:
>> https://buildd.debian.org/status/fetch.php?pkg=liburing&arch=hppa&ver=2.3-3&stamp=1676478898&raw=0
> 
> Most of the test failures seem to be related to O_DIRECT opens, which
> I'm guessing is because it's run on an fs without O_DIRECT support?
> Outside of that, I think some of the syzbot cases are just generally
> broken on various archs.
> 
> Lastly, there's a few of these:
> 
> Running test buf-ring.t                                             bad run 0/0 = -233
> 
> and similar (like -223) which I really don't know what is, where do
> these values come from? Ah hang on, they are in the parisc errno,
> so that'd be -ENOBUFS and -EOPNOTSUPP. I wonder if there's some
> discrepancy between the kernel and user side errno values here?

I ran the tests in qemu, but didn't see the weird differences in errno
values here between the kernel and userspace. As an example of the above
one:

root@debian:~/liburing# test/buf-ring.t 
root@debian:~/liburing# echo $?
0

it runs fine here. The other failure cases:

917257daa0fe.t: this is due to syzbot using hard wired values, I changed
it to symbolic mmap flags, and ditto for all the other tests where that
was the issue.

accept.t: setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(val));
fails here, no idea why.

xattr.t: works for me

The rest look like either errno value mismatches, or O_DIRECT not
working for you. This was tested with 6.2-rc7+ git, so a recent kernel.

-- 
Jens Axboe


  reply	other threads:[~2023-02-15 19:00 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-02-12  9:47 io_uring failure on parisc (32-bit userspace and 64-bit kernel) Helge Deller
2023-02-12 13:16 ` Jens Axboe
2023-02-12 13:28   ` Helge Deller
2023-02-12 13:35     ` Jens Axboe
2023-02-12 14:00       ` Jens Axboe
2023-02-12 14:03       ` Helge Deller
2023-02-12 19:35         ` Helge Deller
2023-02-12 19:42           ` Jens Axboe
2023-02-12 20:01             ` Helge Deller
2023-02-12 21:48               ` Jens Axboe
2023-02-12 22:20                 ` Helge Deller
2023-02-12 22:31                   ` Helge Deller
2023-02-13 16:15                     ` Jens Axboe
2023-02-13 20:59                       ` Helge Deller
2023-02-13 21:05                         ` Jens Axboe
2023-02-13 22:05                           ` Helge Deller
2023-02-13 22:50                             ` John David Anglin
2023-02-14 23:09                               ` io_uring failure on parisc with VIPT caches Helge Deller
2023-02-14 23:29                                 ` Jens Axboe
2023-02-15  2:12                                   ` John David Anglin
2023-02-15 15:16                                     ` Jens Axboe
2023-02-15 15:52                                       ` Helge Deller
2023-02-15 15:56                                         ` Jens Axboe
2023-02-15 16:02                                           ` Helge Deller
2023-02-15 16:04                                             ` Jens Axboe
2023-02-15 21:40                                               ` Helge Deller
2023-02-15 23:04                                                 ` Jens Axboe
2023-02-15 16:38                                           ` John David Anglin
2023-02-15 17:01                                             ` Jens Axboe
2023-02-15 19:00                                               ` Jens Axboe [this message]
2023-02-15 19:16                                                 ` Jens Axboe
2023-02-15 20:27                                                   ` John David Anglin
2023-02-15 20:37                                                     ` Jens Axboe
2023-02-15 21:06                                                       ` John David Anglin
2023-02-15 21:38                                                         ` Jens Axboe
2023-02-15 21:39                                                         ` John David Anglin
2023-02-15 22:10                                                           ` John David Anglin
2023-02-15 23:02                                                             ` Jens Axboe
2023-02-15 23:43                                                               ` John David Anglin
2023-02-16  2:40                                                               ` John David Anglin
2023-02-16  2:50                                                                 ` Jens Axboe
2023-02-16  8:24                                                                   ` Helge Deller
2023-02-16 15:22                                                                     ` Jens Axboe
2023-02-16 20:35                                                                     ` John David Anglin
2023-02-15 23:03                                                           ` Jens Axboe
2023-02-15 19:20                                                 ` John David Anglin
2023-02-15 19:24                                                   ` Jens Axboe
2023-02-15 16:18                                         ` John David Anglin

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