Re: shutdown oops in xt_compat_calc_jump

[dann frazier <dannf@dannf.org>]

On Mon, Apr 04, 2011 at 10:37:57PM +0200, Eric Dumazet wrote:
> Le lundi 04 avril 2011 à 22:02 +0200, Patrick McHardy a écrit :
> > CCed netfilter-devel.
> > 
> > Am 04.04.2011 21:48, schrieb dann frazier:
> > > fyi, noticed this oops when shutting down a system running top of git
> > > (@ 78fca1be)
> > > 
> > > [ 1169.794644] cfg80211: Calling CRDA to update world regulatory domain
> > > [ 1170.490646] bluetoothd[2029]: segfault at f8ad9944 ip 00000000f77045e0 sp 00000000ffcb14e0 error 4 in bluetoothd[f76bf000+8b000]
> > > [ 1170.543817] BUG: unable to handle kernel paging request at 00000001dc1be9f8
> > > [ 1170.543875] IP: [<ffffffffa051e7b0>] xt_compat_calc_jump+0x25/0x6f [x_tables]
> > > [ 1170.543927] PGD 1215b3067 PUD 0 
> > > [ 1170.543955] Oops: 0000 [#1] SMP 
> > > [ 1170.543982] last sysfs file: /sys/module/bridge/initstate
> > > [ 1170.544017] CPU 3 
> > > [ 1170.544031] Modules linked in: ebtable_broute ebtable_filter vfat msdos fat ext3 jbd ip6table_filter ip6_tables ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT xt_tcpudp iptable_filter ip_tables x_tables bridge stp llc acpi_cpufreq mperf cpufreq_powersave cpufreq_userspace cpufreq_conservative cpufreq_stats binfmt_misc kvm(-) fuse ext2 loop snd_hda_codec_hdmi snd_hda_codec_conexant arc4 ecb snd_usb_audio snd_usbmidi_lib snd_seq_midi snd_seq_midi_event snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_rawmidi i915 drm_kms_helper thinkpad_acpi snd_seq iwlagn snd_timer snd_seq_device drm snd mac80211 psmouse btusb serio_raw bluetooth evdev tpm_tis snd_page_alloc tpm i2c_i801 i2c_algo_bit cfg80211 battery soundcore nvram tpm_bios i2c_core rfkill wmi ac power_supply video button processor ext4 mbcache jbd2 crc16 sha256_generic aesni_intel cryptd aes_x86_64 aes_generic cbc dm_crypt dm_mod sd_mod crc_t10
>  di
> > f 
> > >  usbhid
> > > hid usb_storage ahci libahci libata ehci_hcd scsi_mod usbcore e1000e thermal thermal_sys [last unloaded: kvm_intel]
> > > [ 1170.544836] 
> > > [ 1170.544849] Pid: 4901, comm: ebtables Not tainted 2.6.39-rc1+ #9 LENOVO 2516CTO/2516CTO
> > > [ 1170.544902] RIP: 0010:[<ffffffffa051e7b0>]  [<ffffffffa051e7b0>] xt_compat_calc_jump+0x25/0x6f [x_tables]
> > > [ 1170.544958] RSP: 0018:ffff880121473cf8  EFLAGS: 00010217
> > > [ 1170.544989] RAX: 000000003b837d3f RBX: 0000000000000090 RCX: 000000007706fa7f
> > > [ 1170.545029] RDX: 0000000000000000 RSI: 0000000000000090 RDI: 000000003b837d3f
> > > [ 1170.545067] RBP: ffffc900111a3000 R08: 0000000000000000 R09: dead000000200200
> > > [ 1170.545104] R10: dead000000100100 R11: 0000000000001311 R12: ffff880121473d88
> > > [ 1170.545147] R13: ffffc900111a6000 R14: ffffffff817de300 R15: 0000000000000000
> > > [ 1170.545185] FS:  0000000000000000(0000) GS:ffff880137d80000(0063) knlGS:00000000f761b6c0
> > > [ 1170.545227] CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
> > > [ 1170.545258] CR2: 00000001dc1be9f8 CR3: 0000000125868000 CR4: 00000000000006e0
> > > [ 1170.545297] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> > > [ 1170.545334] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> > > [ 1170.545375] Process ebtables (pid: 4901, threadinfo ffff880121472000, task ffff8801322d1ac0)
> > > [ 1170.545418] Stack:
> > > [ 1170.545433]  0000000000000090 ffffffffa0576d46 f7007265746c6966 0000000000000054
> > > [ 1170.545479]  0000000000000000 0000000000000000 000000000000000e 0000000000000090
> > > [ 1170.545529]  0000000000000000 0000000008af2180 0000000008af21b0 0000000008af21e0
> > > [ 1170.545579] Call Trace:
> > > [ 1170.545600]  [<ffffffffa0576d46>] ? compat_do_replace+0x117/0x221 [ebtables]
> > > [ 1170.545639]  [<ffffffffa0577392>] ? compat_do_ebt_set_ctl+0x55/0xbb [ebtables]
> > > [ 1170.545688]  [<ffffffff810337e3>] ? need_resched+0x1a/0x23
> > > [ 1170.545723]  [<ffffffff810337f1>] ? should_resched+0x5/0x24
> > > [ 1170.545730]  [<ffffffff81314cc5>] ? _cond_resched+0x9/0x20
> > > [ 1170.545733]  [<ffffffff813152fe>] ? mutex_lock_interruptible+0x18/0x32
> > > [ 1170.545738]  [<ffffffff8128490b>] ? nf_sockopt_find.clone.1+0xda/0xec
> > > [ 1170.545742]  [<ffffffff81284996>] ? compat_nf_sockopt+0x79/0xa5
> > > [ 1170.545744]  [<ffffffff810337f1>] ? should_resched+0x5/0x24
> > > [ 1170.545747]  [<ffffffff812849f3>] ? compat_nf_setsockopt+0x1a/0x1f
> > > [ 1170.545751]  [<ffffffff8128fb35>] ? compat_ip_setsockopt+0x80/0xa0
> > > [ 1170.545756]  [<ffffffff812784a2>] ? compat_sys_setsockopt+0x1d5/0x204
> > > [ 1170.545759]  [<ffffffff810337f1>] ? should_resched+0x5/0x24
> > > [ 1170.545761]  [<ffffffff81314cc5>] ? _cond_resched+0x9/0x20
> > > [ 1170.545764]  [<ffffffff812788a5>] ? compat_sys_socketcall+0x148/0x1a7
> > > [ 1170.545768]  [<ffffffff8131d2c0>] ? sysenter_dispatch+0x7/0x2e
> > > [ 1170.545769] Code: 5d 41 5e 41 5f c3 40 0f b6 ff 53 31 d2 48 6b ff 70 48 03 3d 03 1b 00 00 8b 4f 6c 4c 8b 47 60 ff c9 eb 27 8d 04 11 d1 f8 48 63 f8 
> > > [ 1170.545787] RIP  [<ffffffffa051e7b0>] xt_compat_calc_jump+0x25/0x6f [x_tables]
> > > [ 1170.545792]  RSP <ffff880121473cf8>
> > > [ 1170.545794] CR2: 00000001dc1be9f8
> > > [ 1170.654269] ---[ end trace d44667d90dcbd115 ]---
> > > [ 1170.662411] fuse exit
> > > Kernel logging (proc) stopped.
> > > --
> 
> 
> Hmm, commit 255d0dc34068a976550ce555e must have a problem for ebtables ?
> 
> Dann, could you give us what you do with ebtables ?

I don't do anything explicitly with ebtables, I just happen to have it
installed. The only place I know of that calls ebtables on shutdown is
the ebtables initscript itself:

dannf@fluid:~$ sudo rm /tmp/ebtables.log 
dannf@fluid:~$ cat /sbin/ebtables
#!/bin/sh

echo "$*" >> /tmp/ebtables.log

/sbin/ebtables.real $*
dannf@fluid:~$ sudo /etc/init.d/ebtables stop
Clearing ebtables rulesets: filter nat broute done.
dannf@fluid:~$ sudo cat /tmp/ebtables.log 
-t filter -L
-t filter -L
-t nat -L
-t broute -L
-t filter --init-table
-t nat --init-table
-t broute --init-table