From: Oleg Nesterov <oleg@redhat.com>
To: James Hogan <james.hogan@imgtec.com>
Cc: linux-kernel@vger.kernel.org, Ralf Baechle <ralf@linux-mips.org>,
David Daney <david.daney@cavium.com>,
Al Viro <viro@zeniv.linux.org.uk>,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
David Howells <dhowells@redhat.com>,
Dave Jones <davej@redhat.com>,
linux-mips@linux-mips.org
Subject: Re: [PATCH v2] MIPS: Reduce _NSIG from 128 to 127 to avoid BUG_ON
Date: Fri, 14 Jun 2013 18:22:44 +0200 [thread overview]
Message-ID: <20130614162244.GA15754@redhat.com> (raw)
In-Reply-To: <1371225825-8225-1-git-send-email-james.hogan@imgtec.com>
On 06/14, James Hogan wrote:
>
> However do_group_exit() checks for the core dump bit (0x80) in the exit
> code which matches in this particular case and the kernel panics:
>
> BUG_ON(exit_code & 0x80); /* core dumps don't get here */
>
> Lets avoid this by changing the ABI by reducing the number of signals to
> 127 (so that the maximum signal number is 127).
Agreed.
Of course I can't ack the change in arch/mips, but to me this looks
like a best solution.
Oleg.
next prev parent reply other threads:[~2013-06-14 16:27 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-14 16:03 [PATCH v2] MIPS: Reduce _NSIG from 128 to 127 to avoid BUG_ON James Hogan
2013-06-14 16:03 ` James Hogan
2013-06-14 16:22 ` Oleg Nesterov [this message]
2013-06-14 16:28 ` David Daney
2013-06-14 16:28 ` David Daney
2013-06-17 10:36 ` James Hogan
2013-06-17 10:36 ` James Hogan
2013-06-28 19:28 ` Denys Vlasenko
2013-06-28 22:03 ` James Hogan
2013-09-04 4:41 ` Rich Felker
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