From: Bob Gill <gillb4@telusplanet.net>
To: "David S. Miller" <davem@redhat.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] preempt count regression w/ lockless loopback patch
Date: Tue, 22 Jun 2004 23:21:40 -0600 [thread overview]
Message-ID: <1087968100.4083.8.camel@localhost.localdomain> (raw)
In-Reply-To: <20040622140140.66b26cd1.davem@redhat.com>
On Tue, 2004-06-22 at 15:01, David S. Miller wrote:
> Thanks a lot Arthur, patch applied.
Hi. Sorry for the late reply. I applied the patch (so now my
drivers/net/loopback.c around line 173 looks like:
for (i=0; i < NR_CPUS; i++) {
if (!cpu_possible(i))
continue;
lb_stats = &per_cpu(loopback_stats, i);
stats->rx_bytes += per_cpu_ptr(loopback_stats,
i)->rx_bytes;
stats->tx_bytes += per_cpu_ptr(loopback_stats,
i)->tx_bytes;
stats->rx_packets += per_cpu_ptr(loopback_stats,
i)->rx_packets; stats->tx_packets +=
per_cpu_ptr(loopback_stats, i)->tx_packets; }
return stats;
(and if that is the patch, then I get --with extra debugging in the
kernel):
CPU: 0
EIP: 0060:[<co11f349>] Not tainted
EFLAGS: 00010246 (2.6.7-bk5)
EIP is at __mod_timer+0x170/0x17d
eax: 00000000 ebx: 00000000 ecx: f7ba8a20 edx: f7ba8aa4
esi: f7ba8aa4 edi: 0000e000 ebp: f7af7e80 esp: f7af7e38
ds: 007b es: 007b ss: 0068
Process ifconfig (pid: 1535, threadinfo=f7af6000 task
Stack: 00000000 00001200 00000000 00000000 f7ba8800 0000e000 f7af7e80
f8aa6cb9
f7ba8aa4 fffc163b 00000001 f7ba8800 f7ba8800 f7ba8a20 90326f48
f770f658
c0328460 f7ba8800 00000000 c0256344 f7ba8800 f770f658 0000004c
f7fd2238
Call Trace:
[<f8aa6cb9>] sis900_open+0x15f/0x166 [sis900]
[<c0256344>] neigh_parms_alloc+0xa9/0xb9
[<c0288a17>] inetdev_init+0x89/0x16e
[<c028907e>] inet_set_ifa+0x9f/0x105
[<c02888b6>] inet_alloc_ifa+0x22/0x48
[<c028982b>] devinet_ioctl+0x2f3/0x560
[<c028bbbd>] inet_ioctl+0x5e/0x9e
[<c0248dc5>] sock_ioctl+0xed/0x28b
[<c0248cd8>] sock_ioctl+0x0/0x28b
[<c015c9e7>] sys_ioctl+0xf7/0x24c
[<c0103eb1>] sysenter_past_esp+0x52/0x71
Code: 0f 0b 9b 00 4b 42 2b c0 e9 a1 fe ff ff 83 ec 14 89 7c 24 10
I will try (any patches), but unfortunately, my turnaround time will
(likely) be delayed about 20 hours from this post (working long hours
lately).
Thanks for all replies.
Bob
parent reply other threads:[~2004-06-23 5:16 UTC|newest]
Thread overview: expand[flat|nested] mbox.gz Atom feed
[parent not found: <20040622140140.66b26cd1.davem@redhat.com>]
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