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From: Grzegorz Nosek <grzegorz.nosek@gmail.com>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: vserver@list.linux-vserver.org, linux-kernel@vger.kernel.org,
	Andrew Morton <akpm@osdl.org>
Subject: Re: [PATCH] race condition in procfs
Date: Wed, 30 Nov 2005 16:29:42 +0100	[thread overview]
Message-ID: <121a28810511300729p6983c9a2x@mail.gmail.com> (raw)
In-Reply-To: <1133363652.25340.17.camel@localhost.localdomain>

[-- Attachment #1: Type: text/plain, Size: 283 bytes --]

2005/11/30, Steven Rostedt <rostedt@goodmis.org>:
>
> OK, Remove your patches, run the system where you can capture the log,
> and provide a full output of the oops.  Make sure you have
> CONFIG_KALLSYMS set.
>

OK, attached an oops from netconsole.

TIA,
 Grzegorz Nosek

[-- Attachment #2: oops.s35 --]
[-- Type: application/octet-stream, Size: 8426 bytes --]

Nov 27 00:15:26 s35 [43281574.240000] Unable to handle kernel NULL pointer dereference
Nov 27 00:15:26 s35 at virtual address 00000000 
Nov 27 00:15:26 s35 [43281574.240000]  printing eip: 
Nov 27 00:15:26 s35 [43281574.240000] a01b50eb 
Nov 27 00:15:26 s35 [43281574.240000] *pde = 00000000 
Nov 27 00:15:26 s35 [43281574.240000] Oops: 0000 [#1] 
Nov 27 00:15:26 s35 [43281574.240000] SMP 
Nov 27 00:15:26 s35  
Nov 27 00:15:26 s35 [43281574.240000] Modules linked in:
Nov 27 00:15:26 s35 ipt_owner
Nov 27 00:15:26 s35 ipt_state
Nov 27 00:15:26 s35 iptable_filter
Nov 27 00:15:26 s35 netconsole
Nov 27 00:15:26 s35 uhci_hcd
Nov 27 00:15:26 s35 ohci_hcd
Nov 27 00:15:26 s35 ehci_hcd
Nov 27 00:15:26 s35 usbcore
Nov 27 00:15:26 s35 ip_conntrack_ftp
Nov 27 00:15:26 s35 ip_conntrack
Nov 27 00:15:26 s35 forcedeth
Nov 27 00:15:26 s35  
Nov 27 00:15:26 s35 [43281574.240000] CPU:    1 
Nov 27 00:15:26 s35 [43281574.240000] EIP:    0060:[<a01b50eb>]    Not tainted VLI 
Nov 27 00:15:26 s35 [43281574.240000] EFLAGS: 00010257   (2.6.14.2amd64smp.17)  
Nov 27 00:15:26 s35 [43281574.240000] EIP is at do_task_stat+0x8b/0x890 
Nov 27 00:15:26 s35 [43281574.240000] eax: 00000000   ebx: 00000000   ecx: a0601700   edx: c804ad48 
Nov 27 00:15:26 s35 [43281574.240000] esi: b3fbe000   edi: f666aa70   ebp: d7e65f20   esp: d7e65da0 
Nov 27 00:15:26 s35 [43281574.240000] ds: 007b   es: 007b   ss: 0068 
Nov 27 00:15:26 s35 [43281574.240000] Process pidof (pid: 4723, threadinfo=d7e64000 task=e24e7550)
Nov 27 00:15:26 s35  
Nov 27 00:15:26 s35 [43281574.240000] Stack: 
Nov 27 00:15:26 s35 a01b1e2e 
Nov 27 00:15:26 s35 f666aa70 
Nov 27 00:15:26 s35 d7e65f28 
Nov 27 00:15:26 s35 a8cab11c 
Nov 27 00:15:26 s35 d7e65e24 
Nov 27 00:15:26 s35 d7e65de8 
Nov 27 00:15:26 s35 a0184934 
Nov 27 00:15:26 s35 d7e65e24 
Nov 27 00:15:26 s35  
Nov 27 00:15:26 s35 [43281574.240000]        
Nov 27 00:15:26 s35 a8cab544 
Nov 27 00:15:26 s35 d7e65de8 
Nov 27 00:15:26 s35 a019090d 
Nov 27 00:15:26 s35 a8cab544 
Nov 27 00:15:26 s35 a0720a00 
Nov 27 00:15:26 s35 d7e65df8 
Nov 27 00:15:26 s35 a2227140 
Nov 27 00:15:26 s35 00000000 
Nov 27 00:15:26 s35  
Nov 27 00:15:26 s35 [43281574.240000]        
Nov 27 00:15:26 s35 00000000 
Nov 27 00:15:26 s35 d7e65e2c 
Nov 27 00:15:26 s35 d7e65e48 
Nov 27 00:15:26 s35 a0185664 
Nov 27 00:15:26 s35 a8cab544 
Nov 27 00:15:26 s35 d7e65e2c 
Nov 27 00:15:26 s35 d7e65e24 
Nov 27 00:15:26 s35 c94ff00b 
Nov 27 00:15:26 s35  
Nov 27 00:15:26 s35 [43281574.240000] Call Trace: 
Nov 27 00:15:26 s35 [43281574.240000]  [<a0103e9f>] 
Nov 27 00:15:26 s35 show_stack+0x7f/0xa0
Nov 27 00:15:26 s35  
Nov 27 00:15:26 s35 [43281574.240000]  [<a010403d>] 
Nov 27 00:15:26 s35 show_registers+0x15d/0x1d0
Nov 27 00:15:26 s35  
Nov 27 00:15:26 s35 [43281574.240000]  [<a0104252>] 
Nov 27 00:15:26 s35 die+0x112/0x1c0
Nov 27 00:15:26 s35  
Nov 27 00:15:26 s35 [43281574.240000]  [<a055c2b9>] 
Nov 27 00:15:26 s35 do_page_fault+0x3d9/0x650
Nov 27 00:15:26 s35  
Nov 27 00:15:26 s35 [43281574.240000]  [<a0103b53>] 
Nov 27 00:15:26 s35 error_code+0x4f/0x54
Nov 27 00:15:26 s35  
Nov 27 00:15:26 s35 [43281574.240000]  [<a01b5940>] 
Nov 27 00:15:26 s35 proc_tgid_stat+0x20/0x30
Nov 27 00:15:26 s35  
Nov 27 00:15:26 s35 [43281574.240000]  [<a01b0f75>] 
Nov 27 00:15:26 s35 proc_info_read+0x55/0xa0
Nov 27 00:15:26 s35  
Nov 27 00:15:26 s35 [43281574.240000]  [<a0174d68>] 
Nov 27 00:15:26 s35 vfs_read+0x198/0x1a0
Nov 27 00:15:26 s35  
Nov 27 00:15:26 s35 [43281574.240000]  [<a017506b>] 
Nov 27 00:15:26 s35 sys_read+0x4b/0x80
Nov 27 00:15:26 s35  
Nov 27 00:15:26 s35 [43281574.240000]  [<a010302d>] 
Nov 27 00:15:26 s35 syscall_call+0x7/0xb
Nov 27 00:15:26 s35  
Nov 27 00:15:26 s35 [43281574.240000] Code: 
Nov 27 00:15:26 s35 00 
Nov 27 00:15:26 s35 00 
Nov 27 00:15:26 s35 00 
Nov 27 00:15:26 s35 00 
Nov 27 00:15:26 s35 c7 
Nov 27 00:15:26 s35 85 
Nov 27 00:15:26 s35 6c 
Nov 27 00:15:26 s35 ff 
Nov 27 00:15:26 s35 ff 
Nov 27 00:15:26 s35 ff 
Nov 27 00:15:26 s35 00 
Nov 27 00:15:26 s35 00 
Nov 27 00:15:26 s35 00 
Nov 27 00:15:26 s35 00 
Nov 27 00:15:26 s35 8b 
Nov 27 00:15:26 s35 07 
Nov 27 00:15:26 s35 8b 
Nov 27 00:15:26 s35 9f 
Nov 27 00:15:26 s35 84 
Nov 27 00:15:26 s35 00 
Nov 27 00:15:26 s35 00 
Nov 27 00:15:26 s35 00 
Nov 27 00:15:26 s35 25 
Nov 27 00:15:26 s35 8f 
Nov 27 00:15:26 s35 00 
Nov 27 00:15:26 s35 00 
Nov 27 00:15:26 s35 00 
Nov 27 00:15:26 s35 83 
Nov 27 00:15:26 s35 e3 
Nov 27 00:15:26 s35 30 
Nov 27 00:15:26 s35 09 
Nov 27 00:15:26 s35 d8 
Nov 27 00:15:26 s35 eb 
Nov 27 00:15:26 s35 05 
Nov 27 00:15:26 s35 83 
Nov 27 00:15:26 s35 c1 
Nov 27 00:15:26 s35 04 
Nov 27 00:15:26 s35 d1 
Nov 27 00:15:26 s35 e8 
Nov 27 00:15:26 s35 75 
Nov 27 00:15:26 s35 f9 
Nov 27 00:15:26 s35 8b 
Nov 27 00:15:26 s35 01 
Nov 27 00:15:26 s35 unparseable log message: "<0f> "
Nov 27 00:15:26 s35 b6 
Nov 27 00:15:26 s35 00 
Nov 27 00:15:26 s35 c7 
Nov 27 00:15:26 s35 45 
Nov 27 00:15:26 s35 c8 
Nov 27 00:15:26 s35 00 
Nov 27 00:15:26 s35 00 
Nov 27 00:15:26 s35 00 
Nov 27 00:15:26 s35 00 
Nov 27 00:15:26 s35 c7 
Nov 27 00:15:26 s35 45 
Nov 27 00:15:26 s35 cc 
Nov 27 00:15:26 s35 00 
Nov 27 00:15:26 s35 00 
Nov 27 00:15:26 s35 00 
Nov 27 00:15:26 s35 00 
Nov 27 00:15:26 s35 c7 
Nov 27 00:15:26 s35 45 
Nov 27 00:15:26 s35 d0 
Nov 27 00:15:26 s35 00 
Nov 27 00:15:26 s35  
Nov 27 00:15:26 s35 [43281574.240000] History:	SEQ:  3ddca14	NR_CPUS: 8 
Nov 27 00:15:26 s35 [43281574.240000] (#c9ae,*0):a04d546e set_vx_info f6e48000[#830,190.71] @f4fcf4e8 
Nov 27 00:15:26 s35 [43281574.240000] (#c964,*1):a013ac82 release_vx_info f6e48000[#830,190.74] @c5cdb030 
Nov 27 00:15:26 s35 [43281574.240000] (#ca13,*0):a04d40b2 clr_vx_info f6e48000[#830,188.71] @db738068 
Nov 27 00:15:26 s35 [43281574.240000] (#ca14,*1):a0104140 oops  
Nov 27 00:15:26 s35 [43281574.240000] (#ca12,*0):a04d40b2 clr_vx_info f6e48000[#830,189.71] @db739b68 
Nov 27 00:15:26 s35 [43281574.240000] (#ca0f,*1):a011c57c clr_vx_info f6e1e000[#831,151.39] @f6f1bad0 
Nov 27 00:15:26 s35 [43281574.240000] (#ca11,*0):a04d40b2 clr_vx_info f6e48000[#830,190.71] @ad3a16e8 
Nov 27 00:15:26 s35 [43281574.240000] (#ca0e,*1):a011c45c set_vx_info f6e1e000[#831,150.39] @f6f1a210 
Nov 27 00:15:26 s35 [43281574.240000] (#ca10,*0):a04d40b2 clr_vx_info f6e48000[#830,191.71] @ed1a7b68 
Nov 27 00:15:26 s35 [43281574.240000] (#ca0d,*1):a04d40b2 clr_vx_info f6e48000[#830,192.71] @b6b98ae8 
Nov 27 00:15:26 s35 [43281574.240000] (#ca03,*0):a04d4556 set_vx_info f6e48000[#830,190.71] @ba389268 
Nov 27 00:15:26 s35 [43281574.240000] (#ca0c,*1):a011ddac claim_vx_info f6e1e000[#831,150.38] @e24e7550 
Nov 27 00:15:26 s35 [43281574.240000] (#ca02,*0):a04d40b2 clr_vx_info f6e48000[#830,191.71] @b6b98d68 
Nov 27 00:15:26 s35 [43281574.240000] (#ca0b,*1):a011c45c set_vx_info f6e1e000[#831,149.38] @f6f1bad0 
Nov 27 00:15:26 s35 [43281574.240000] (#ca01,*0):a04d546e set_vx_info f6e48000[#830,190.71] @b6b98d68 
Nov 27 00:15:26 s35 [43281574.240000] (#ca0a,*1):a011d38c init_vx_info f6e1e000[#831,148.38] @e24e79f8 
Nov 27 00:15:26 s35 [43281574.240000] (#ca00,*0):a04d40b2 clr_vx_info f6e48000[#830,191.71] @f4fcf4e8 
Nov 27 00:15:26 s35 [43281574.240000] (#ca09,*1):a011bf10 clr_vx_info f6e1e000[#831,149.38] @e24e79f8 
Nov 27 00:15:26 s35 [43281574.240000] (#c9ff,*0):a04d40b2 clr_vx_info f6e48000[#830,192.71] @f56bbde8 
Nov 27 00:15:26 s35 [43281574.240000] (#ca08,*1):a04d546e set_vx_info f6e48000[#830,191.71] @b6b98ae8 
Nov 27 00:15:26 s35 [43281574.240000] (#c9fe,*0):a04d546e set_vx_info f6e48000[#830,191.71] @f56bbde8 
Nov 27 00:15:26 s35 [43281574.240000] (#ca07,*1):a04d40b2 clr_vx_info f6e48000[#830,192.71] @cbec5068 
Nov 27 00:15:26 s35 [43281574.240000] (#c9fd,*0):a04d546e set_vx_info f6e48000[#830,190.71] @f4fcf4e8 
Nov 27 00:15:26 s35 [43281574.240000] (#ca06,*1):a04d40b2 clr_vx_info f6e48000[#830,193.71] @cbec5ba8 
Nov 27 00:15:26 s35 [43281574.240000] (#c9fc,*0):a04d4556 set_vx_info f6e48000[#830,189.71] @ad3a16e8 
Nov 27 00:15:26 s35 [43281574.240000] (#ca05,*1):a04d546e set_vx_info f6e48000[#830,192.71] @cbec5ba8 
Nov 27 00:15:26 s35 [43281574.240000] (#c9fb,*0):a04d40b2 clr_vx_info f6e48000[#830,190.71] @ad3a16e8 
Nov 27 00:15:26 s35 [43281574.240000] (#ca04,*1):a04d546e set_vx_info f6e48000[#830,191.71] @cbec5068 
Nov 27 00:15:26 s35 [43281574.240000] (#c9f7,*0):a011c57c clr_vx_info f6e1e000[#831,148.37] @f6f1a790 
Nov 27 00:15:26 s35 [43281574.240000] (#c9fa,*1):a011ddac claim_vx_info f6e1e000[#831,149.37] @e4856550 

  reply	other threads:[~2005-11-30 15:29 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-11-29  7:17 [PATCH] race condition in procfs Grzegorz Nosek
2005-11-29  8:09 ` Andrew Morton
2005-11-29  8:38   ` Grzegorz Nosek
2005-11-29 13:25     ` Grzegorz Nosek
2005-11-29 14:04       ` Grzegorz Nosek
2005-11-29 14:28         ` Steven Rostedt
2005-11-29 14:39           ` Grzegorz Nosek
2005-11-29 14:49             ` Steven Rostedt
2005-11-30 14:41               ` Grzegorz Nosek
2005-11-30 15:14                 ` Steven Rostedt
2005-11-30 15:29                   ` Grzegorz Nosek [this message]
2005-11-30 16:25                     ` Steven Rostedt
2005-11-30 17:23                       ` Grzegorz Nosek
2005-12-01 20:38                         ` Grzegorz Nosek
2005-11-29 15:22   ` [PATCH] shrinks dentry struct Eric Dumazet
2005-11-30  2:06     ` Paul Jackson
2005-11-30  2:14       ` Andrew Morton
2005-11-30  2:43         ` Paul Jackson
2005-11-30  6:56         ` Hugh Dickins
2005-12-03  1:15     ` [PATCH] remove unused blkp field in percpu_data Eric Dumazet
2005-12-13 18:03     ` [PATCH] shrinks dentry struct Paul E. McKenney
2005-12-13 18:24       ` Eric Dumazet

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