From: Ralf Baechle <ralf@linux-mips.org>
To: linux-mips@linux-mips.org
Subject: Re: explain to me how this works...
Date: Thu, 14 Nov 2002 23:27:48 +0100 [thread overview]
Message-ID: <20021114232748.A9839@linux-mips.org> (raw)
In-Reply-To: <20021114131232.B1706@wumpus.internal.keyresearch.com>; from lindahl@keyresearch.com on Thu, Nov 14, 2002 at 01:12:32PM -0800
On Thu, Nov 14, 2002 at 01:12:32PM -0800, Greg Lindahl wrote:
> strace says:
>
> socket(PF_PACKET, SOCK_DGRAM, 0) = 4183
> socket(PF_PACKET, SOCK_DGRAM, 0) = 4183
> socket(PF_PACKET, SOCK_DGRAM, 0) = -1 EAFNOSUPPORT (Address family not supported by protocol)
>
> printk says:
>
> sys_socket returning 0
> sys32_socket returning 0
> sys_socket returning -124
> sys32_socket returning -124
>
> Note strace sees 3 syscalls. I only printk at the return statement,
> and there are 2 of those. I'll add more printks...
This smells alot like syscall restarting. The first two times the
syscall fails with one of ERESTARTNOHAND, ERESTARTSYS or ERESTARTNOINTR,
then the third time is fails with EAFNOSUPPORT.
Enable CONFIG_PACKET and CONFIG_NETLINK_DEV.
The only bug here is strace being to stupid to filter out syscall restarts.
Ralf
prev parent reply other threads:[~2002-11-14 22:27 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-05 16:53 gcc 3.2 is available for RedHat 7.3/mips/mipsel H. J. Lu
2002-11-14 1:42 ` explain to me how this works Greg Lindahl
2002-11-14 4:15 ` ilya
2002-11-14 16:10 ` Greg Lindahl
2002-11-14 18:39 ` Ralf Baechle
2002-11-14 19:30 ` Greg Lindahl
2002-11-14 20:07 ` Jun Sun
2002-11-14 20:12 ` Ralf Baechle
2002-11-14 21:12 ` Greg Lindahl
2002-11-14 21:50 ` Greg Lindahl
2002-11-14 22:27 ` Ralf Baechle [this message]
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