From: Patrick McHardy <kaber@trash.net>
To: Alexey Dobriyan <adobriyan@gmail.com>
Cc: netfilter-devel@vger.kernel.org
Subject: Re: [PATCH] netns ct: walk netns list under RTNL
Date: Tue, 04 Nov 2008 14:40:44 +0100 [thread overview]
Message-ID: <491050DC.1020405@trash.net> (raw)
In-Reply-To: <20081101143215.GB23760@x200.localdomain>
Alexey Dobriyan wrote:
> As was suspected, it's oopsable:
>
> BUG: unable to handle kernel paging request at 0000000000100100 <===
> IP: [<ffffffffa00984bc>] nf_conntrack_helper_unregister+0x137/0x16c [nf_conntrack]
> PGD 168b48067 PUD 168b47067 PMD 0
> Oops: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
> last sysfs file: /sys/kernel/uevent_seqnum
> CPU 0
> Modules linked in: nf_conntrack_pptp(-) nf_conntrack_proto_gre af_packet iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 iptable_filter ip_tables xt_tcpudp ip6table_filter ip6_tables x_tables ipv6 sr_mod cdrom [last unloaded: nf_conntrack_pptp]
> Pid: 9110, comm: rmmod Not tainted 2.6.28-rc2-netns-xfrm #2
> RIP: 0010:[<ffffffffa00984bc>] [<ffffffffa00984bc>] nf_conntrack_helper_unregister+0x137/0x16c [nf_conntrack]
> RSP: 0018:ffff8801689dfea8 EFLAGS: 00010212
> RAX: 0000000000004000 RBX: 0000000000000000 RCX: 0000000000000033
> RDX: 0000000000003fff RSI: ffffffffa0648720 RDI: ffff88017fc2ced8
> RBP: ffff8801689dfed8 R08: 0000000000000002 R09: 0000000000000000
> R10: 0000000000000000 R11: ffff8801689dfd98 R12: 00000000001000f8
> R13: ffffffffa0648720 R14: 0000000000004000 R15: 0000000000000880
> FS: 00007f7ba894d6f0(0000) GS:ffffffff80521580(0000) knlGS:0000000000000000
> CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> CR2: 0000000000100100 CR3: 0000000168b45000 CR4: 00000000000006e0
> DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> Process rmmod (pid: 9110, threadinfo ffff8801689de000, task ffff88017cd81218)
> Stack:
> ffff8801689dfed8 ffffffffa06487c0 0000000000000000 0000000000000880
> 00007fffb0955330 0000000000000880 ffff8801689dfee8 ffffffffa064771c
> ffff8801689dff78 ffffffff80253f87 746e6e6f635f666e 7470705f6b636172
> Call Trace:
> [<ffffffffa064771c>] nf_conntrack_pptp_fini+0x10/0x1e [nf_conntrack_pptp]
> [<ffffffff80253f87>] sys_delete_module+0x19f/0x1fe
> [<ffffffff8024cac8>] ? trace_hardirqs_on_caller+0xf0/0x114
> [<ffffffff803ea8b0>] ? trace_hardirqs_on_thunk+0x3a/0x3f
> [<ffffffff8020b52b>] system_call_fastpath+0x16/0x1b
> Code: 48 89 df 4c 89 ee 0f 18 08 e8 64 fe ff ff 48 8b 1b eb e5 49 ff c6 44 3b 35 4a bc 00 00 44 89 f0 72 c8 4d 8b 64 24 08 49 83 ec 08 <49> 8b 44 24 08 0f 18 08 49 8d 44 24 08 48 3d 60 4f 50 80 74 08
> RIP [<ffffffffa00984bc>] nf_conntrack_helper_unregister+0x137/0x16c [nf_conntrack]
> RSP <ffff8801689dfea8>
> CR2: 0000000000100100
> Kernel panic - not syncing: Fatal exception in interrupt
This doesn't explain the problem. *How* is it oopsable?
next prev parent reply other threads:[~2008-11-04 13:40 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-01 14:32 [PATCH] netns ct: walk netns list under RTNL Alexey Dobriyan
2008-11-04 13:40 ` Patrick McHardy [this message]
2008-11-04 18:49 ` Alexey Dobriyan
2008-11-05 10:14 ` Patrick McHardy
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=491050DC.1020405@trash.net \
--to=kaber@trash.net \
--cc=adobriyan@gmail.com \
--cc=netfilter-devel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.