From: Sonny Rao <sonny@burdell.org>
To: linux-kernel@vger.kernel.org
Cc: manfred@colorfullife.com, clameter@sgi.com, anton@samba.org,
sonnyrao@us.ibm.com
Subject: cpu hotplug oops on 2.6.15-rc5
Date: Mon, 19 Dec 2005 00:16:59 -0500 [thread overview]
Message-ID: <20051219051659.GA6299@kevlar.burdell.org> (raw)
(apologies if this is a dup)
Hi, I'm crashing 2.6.15-rc5 when I try and offline the last and only CPU in a node on a ppc64 Power5, SMT was disabled.
Here's the backtrace:
0:mon> t
[c0000001ad033820] c000000000096a7c .kfree+0x250/0x280
[c0000001ad0338d0] c00000000009a544 .cpuup_callback+0x238/0x5fc
[c0000001ad0339c0] c000000000068114 .notifier_call_chain+0x68/0x9c
[c0000001ad033a50] c0000000000789fc .cpu_down+0x1fc/0x368
[c0000001ad033b40] c0000000002ac658 .store_online+0x88/0xe8
[c0000001ad033bd0] c0000000002a6f14 .sysdev_store+0x4c/0x68
[c0000001ad033c50] c000000000110368 .sysfs_write_file+0x100/0x1a0
[c0000001ad033cf0] c0000000000be854 .vfs_write+0x100/0x200
[c0000001ad033d90] c0000000000bea64 .sys_write+0x54/0x9c
[c0000001ad033e30] c000000000008600 syscall_exit+0x0/0x18
--- Exception: c01 (System Call) at 000000000fe5ec10
SP (ffc4c4f0) is in userspace
0:mon> e
cpu 0x0: Vector: 300 (Data Access) at [c0000001ad033520]
pc: c00000000048bd30: ._spin_lock+0x18/0x80
lr: c000000000096a7c: .kfree+0x250/0x280
sp: c0000001ad0337a0
msr: 8000000000001032
dar: 48
dsisr: 40000000
current = 0xc0000001aff12040
paca = 0xc0000000005c1000
pid = 17376, comm = bash
Should I try this with CONFIG_DEBUG_SLAB ?
Sonny
next reply other threads:[~2005-12-19 5:17 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-12-19 5:16 Sonny Rao [this message]
2005-12-19 6:41 ` Benjamin Herrenschmidt
2005-12-19 7:08 ` Sonny Rao
2005-12-19 21:17 ` Manfred Spraul
2005-12-19 23:16 ` SPAMHAUS-Re: " Sonny Rao
2005-12-19 23:40 ` Anton Blanchard
2005-12-22 9:27 ` Ravikiran G Thirumalai
[not found] ` <20051222173700.GA5723@localhost.localdomain>
2005-12-22 17:53 ` Sonny Rao
2005-12-22 18:37 ` Ravikiran G Thirumalai
2005-12-22 18:39 ` Sonny Rao
2005-12-22 18:54 ` Christoph Lameter
2005-12-22 19:09 ` Sonny Rao
2005-12-22 19:45 ` Sonny Rao
2005-12-28 19:30 ` Nathan Lynch
2005-12-29 0:30 ` Sonny Rao
2005-12-29 4:18 ` Nathan Lynch
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