netdev - Re: kernel BUG at net/rxrpc/local

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Message-ID: <20330.1564583454@warthog.procyon.org.uk>
Date:   Wed, 31 Jul 2019 15:30:54 +0100
From:   David Howells <dhowells@...hat.com>
To:     Dmitry Vyukov <dvyukov@...gle.com>
Cc:     dhowells@...hat.com,
        syzbot <syzbot+1e0edc4b8b7494c28450@...kaller.appspotmail.com>,
        Eric Biggers <ebiggers@...nel.org>,
        David Miller <davem@...emloft.net>,
        linux-afs@...ts.infradead.org, LKML <linux-kernel@...r.kernel.org>,
        netdev <netdev@...r.kernel.org>,
        syzkaller-bugs <syzkaller-bugs@...glegroups.com>
Subject: Re: kernel BUG at net/rxrpc/local_object.c:LINE!

Dmitry Vyukov <dvyukov@...gle.com> wrote:

> Re bisection, I don't know if there are some more subtle things as
> play (you are in the better position to judge that), but bisection log
> looks good, it tracked the target crash throughout and wasn't
> distracted by any unrelated bugs, etc. So I don't see any obvious
> reasons to not trust it.

Can you turn on:

	echo 1 > /sys/kernel/debug/tracing/events/rxrpc/rxrpc_local/enable

and capture the trace log at the point it crashes?

David