Message-Id: <20090508.125722.54378771.davem@davemloft.net>
Date:	Fri, 08 May 2009 12:57:22 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	sachinp@...ibm.com
Cc:	linux-next@...r.kernel.org, linuxppc-dev@...abs.org,
	sfr@...b.auug.org.au, netdev@...r.kernel.org, jpirko@...hat.com
Subject: Re: [PowerPC] Next May 8 boot failure: OOPS during ibmveth module
 init

From: Sachin Sant <sachinp@...ibm.com>
Date: Fri, 08 May 2009 18:22:48 +0530

> Todays Next failed to boot on a Power6 JS22 blade with following oops.

Jiri, I suspect this might be your address list changes.

Although that's just a guess.  But please take a look.

> Unable to handle kernel paging request for data at address
> 0x654af306c04b990
> Faulting instruction address: 0xc00000000003a740
> Oops: Kernel access of bad area, sig: 11 [#1]
> SMP NR_CPUS=1024 NUMA pSeries
> Modules linked in: ibmveth(+) sg sd_mod crc_t10dif ibmvscsic
> scsi_transport_srp scsi_tgt scsi_mod
> NIP: c00000000003a740 LR: c000000000361e20 CTR: 0000000000000000
> REGS: c000000042af6e80 TRAP: 0300 Not tainted
> (2.6.30-rc4-next-20090508)
> MSR: 8000000000009032 <EE,ME,IR,DR>  CR: 28222286  XER: 20000001
> DAR: 0654af306c04b990, DSISR: 0000000040000000
> TASK = c0000000428084d0[590] 'modprobe' THREAD: c000000042af4000 CPU:
> 0
> GPR00: c000000000361e10 c000000042af7100 c000000000eb8190
> c00000004427cc80
> GPR04: 0654af306c04b990 0000000000000006 0000000000000000
> 0000000000000002
> GPR08: c00000004427cc00 0000000000000088 0000000000000280
> 000000000000007c
> GPR12: 0000000084222284 c000000000f92400 0000000000000000
> 0000000000000000
> GPR16: 0000000000000000 0000000000000000 d000000000ed4346
> d000000000ed3aa0
> GPR20: d000000000ed6358 c00000004427cc00 00000000ffffffff
> 0000000000000000
> GPR24: 0000000000000000 c0000000402d0000 0000000000000010
> c00000004194b400
> GPR28: 0000000000000006 0654af306c04b990 c000000000e44f18
> 0000000000000000
> NIP [c00000000003a740] .memcpy+0x240/0x278
> LR [c000000000361e20] .__nla_put+0x30/0x4c
> Call Trace:
> [c000000042af7100] [c000000000361e10] .__nla_put+0x20/0x4c
> (unreliable)
> [c000000042af7190] [c000000000361e88] .nla_put+0x4c/0x60
> [c000000042af7200] [c00000000053993c] .rtnl_fill_ifinfo+0x308/0x614
> [c000000042af7300] [c00000000053a118] .rtmsg_ifinfo+0x104/0x198
> [c000000042af73b0] [c00000000053a244] .rtnetlink_event+0x98/0xb0
> [c000000042af7430] [c0000000005c8330] .notifier_call_chain+0x68/0xdc
> [c000000042af74d0] [c000000000530488] .register_netdevice+0x390/0x418
> [c000000042af75a0] [c000000000530568] .register_netdev+0x58/0x80
> [c000000042af7630] [d000000000ed2da4] .ibmveth_probe+0x2c8/0x3a4
> [ibmveth]
> [c000000042af7730] [c000000000023208] .vio_bus_probe+0x2f0/0x358
> [c000000042af77f0] [c000000000462be0] .driver_probe_device+0xd4/0x1bc
> [c000000042af7890] [c000000000462d5c] .__driver_attach+0x94/0xd8
> [c000000042af7920] [c000000000462164] .bus_for_each_dev+0x80/0xe8
> [c000000042af79d0] [c0000000004629b0] .driver_attach+0x28/0x40
> [c000000042af7a50] [c000000000461808] .bus_add_driver+0xdc/0x27c
> [c000000042af7af0] [c0000000004631d0] .driver_register+0xf0/0x1b0
> [c000000042af7b90] [c000000000025178] .vio_register_driver+0x44/0x60
> [c000000042af7c20] [d000000000ed2ed4] .ibmveth_module_init+0x54/0xa60
> [ibmveth]
> [c000000042af7ca0] [c0000000000092c0] .do_one_initcall+0x80/0x19c
> [c000000042af7d90] [c0000000000bf884] .SyS_init_module+0xe0/0x248
> [c000000042af7e30] [c000000000008534] syscall_exit+0x0/0x40
> Instruction dump:
> 7cb01120 7c862214 7c661a14 4bfffe04 409c001c 80040000 81240004
> 38840008
> 90030000 91230004 38630008 409d0014 <80040000> 38840004 90030000
> 38630004
> ---[ end trace 695e9dc0c5a9da2f ]---
> 
> udevd-event[587]: '/sbin/modprobe' abnormal exit
> 
> Unable to handle kernel paging request for data at address
> 0x654af306c04b990
> Faulting instruction address: 0xc000000000543ce0
> Oops: Kernel access of bad area, sig: 11 [#2]
> SMP NR_CPUS=1024 NUMA pSeries
> Modules linked in: ibmveth(+) sg sd_mod crc_t10dif ibmvscsic
> scsi_transport_srp scsi_tgt scsi_mod
> NIP: c000000000543ce0 LR: c000000000543dcc CTR: c00000000053dd98
> REGS: c0000000408b3740 TRAP: 0300 Tainted: G D
> (2.6.30-rc4-next-20090508)
> MSR: 8000000000009032 <EE,ME,IR,DR>  CR: 24042428  XER: 00000001
> DAR: 0654af306c04b990, DSISR: 0000000040000000
> TASK = c00000004053d880[752] 'udevd' THREAD: c0000000408b0000 CPU: 3
> GPR00: c000000000543dcc c0000000408b39c0 c000000000eb8190
> c0000000448e0000
> GPR04: 0000000000010000 c000000000796dec 0000000000000006
> 0000000000000000
> GPR08: c00000004265cf34 c000000000ea7250 c00000004265cf34
> 0000000000000000
> GPR12: 0000000044042488 c000000000f92a00 0000000000000001
> 0000000000000001
> GPR16: 00000000100372dc 00000000100374e0 00000000100376f8
> 0000000000000000
> GPR20: 0000000010036ec8 0000000000000000 00000fffdb3a6618
> 0000000000000200
> GPR24: 0000000000000006 0000000000000005 c0000000448f0000
> c0000000448e0000
> GPR28: 0654af306c04b990 0000000000000000 c000000000e45318
> c0000000448e0000
> NIP [c000000000543ce0] ._format_mac_addr+0x54/0xd4
> LR [c000000000543dcc] .sysfs_format_mac+0x30/0x6c
> Call Trace:
> [c0000000408b39c0] [c00000000010c9a4]
> .__alloc_pages_internal+0x1b8/0x590 (unreliable)
> [c0000000408b3a70] [c000000000543dcc] .sysfs_format_mac+0x30/0x6c
> [c0000000408b3b00] [c00000000053dde8] .show_address+0x50/0x88
> [c0000000408b3b90] [c00000000045ead4] .dev_attr_show+0x4c/0x94
> [c0000000408b3c20] [c0000000001bce48] .sysfs_read_file+0x10c/0x1d0
> [c0000000408b3ce0] [c00000000014c9a0] .vfs_read+0xd0/0x1bc
> [c0000000408b3d80] [c00000000014cb94] .SyS_read+0x58/0xa0
> [c0000000408b3e30] [c000000000008534] syscall_exit+0x0/0x40
> Instruction dump:
> f8010010 ebc2cc58 f821ff51 7c7b1b78 7cd83378 7cbc2b78 7f432214
> 7c7f1b78
> 3ba00000 3b26ffff 48000044 e8be8000 <88dc0000> 3b9c0001 4be0ff89
> 60000000
> ---[ end trace 695e9dc0c5a9da30 ]---
> 
> attempt to access beyond end of device
> 
> Next May 7 with same config boots fine.
> 
> Thanks
> -Sachin
> 
> -- 
> 
> ---------------------------------
> Sachin Sant
> IBM Linux Technology Center
> India Systems and Technology Labs
> Bangalore, India
> ---------------------------------
> 
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