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From: Glauber Costa <[email protected]>
To: Jens Axboe <[email protected]>
Cc: [email protected], Avi Kivity <[email protected]>
Subject: Re: crash on connect
Date: Thu, 20 Feb 2020 11:34:13 -0500	[thread overview]
Message-ID: <CAD-J=zbRDiK2PfXW4B=gHjKtqX1SdXHHne9TsD-NVvp-uznkHg@mail.gmail.com> (raw)
In-Reply-To: <[email protected]>

On Thu, Feb 20, 2020 at 11:29 AM Jens Axboe <[email protected]> wrote:
>
> On 2/20/20 9:17 AM, Jens Axboe wrote:
> > On 2/20/20 7:19 AM, Glauber Costa wrote:
> >> Hi there, me again
> >>
> >> Kernel is at 043f0b67f2ab8d1af418056bc0cc6f0623d31347
> >>
> >> This test is easier to explain: it essentially issues a connect and a
> >> shutdown right away.
> >>
> >> It currently fails due to no fault of io_uring. But every now and then
> >> it crashes (you may have to run more than once to get it to crash)
> >>
> >> Instructions are similar to my last test.
> >> Except the test to build is now "tests/unit/connect_test"
> >> Code is at [email protected]:glommer/seastar.git  branch io-uring-connect-crash
> >>
> >> Run it with ./build/release/tests/unit/connect_test -- -c1
> >> --reactor-backend=uring
> >>
> >> Backtrace attached
> >
> > Perfect thanks, I'll take a look!
>
> Haven't managed to crash it yet, but every run complains:
>
> got to shutdown of 10 with refcnt: 2
> Refs being all dropped, calling forget for 10
> terminate called after throwing an instance of 'fmt::v6::format_error'
>   what():  argument index out of range
> unknown location(0): fatal error: in "unixdomain_server": signal: SIGABRT (application abort requested)
>
> Not sure if that's causing it not to fail here.

Ok, that means it "passed". (I was in the process of figuring out
where I got this wrong when I started seeing the crashes)

>
> --
> Jens Axboe
>

  reply	other threads:[~2020-02-20 16:34 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-20 14:19 crash on connect Glauber Costa
2020-02-20 16:17 ` Jens Axboe
2020-02-20 16:29   ` Jens Axboe
2020-02-20 16:34     ` Glauber Costa [this message]
2020-02-20 16:38       ` Jens Axboe
2020-02-20 16:52         ` Glauber Costa
2020-02-20 17:28           ` Jens Axboe
2020-02-20 17:33             ` Glauber Costa
     [not found]             ` <CAD-J=zbdrZJ2nKgH3Ob=QAAM9Ci439T9DduNxvetK9B_52LDOQ@mail.gmail.com>
2020-02-20 19:12               ` Jens Axboe
2020-02-20 19:19                 ` Glauber Costa
2020-02-20 19:36                   ` Glauber Costa
2020-02-20 20:08                     ` Jens Axboe

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