From: Nathan Lynch <ntl@pobox.com>
To: Joakim Tjernlund <joakim.tjernlund@transmode.se>
Cc: 'linuxppc-dev Development' <linuxppc-dev@ozlabs.org>
Subject: Re: Warnings when booting rc5 on a mpc83xx based board
Date: Tue, 16 Jan 2007 14:11:10 -0600 [thread overview]
Message-ID: <20070116201110.GA4332@localdomain> (raw)
In-Reply-To: <1168968034.31963.11.camel@gentoo-jocke.transmode.se>
Joakim Tjernlund wrote:
> after upgrading to rc5 I get this:
>
> IPIC (128 IRQ sources) at fdefd700
> QEIC (64 IRQ sources) at fdefc080
> PID hash table entries: 512 (order: 9, 2048 bytes)
> ------------[ cut here ]------------
> Badness at c00f4278 [verbose debug info unavailable]
> Call Trace:
> [C0249DC0] [C00085BC] show_stack+0x48/0x194 (unreliable)
> [C0249DF0] [C00F2158] report_bug+0x84/0xac
> [C0249E00] [C000DD28] program_check_exception+0xe0/0x538
> [C0249E40] [C000F78C] ret_from_except_full+0x0/0x4c
> --- Exception: 700 at kref_get+0xc/0x24
> LR = of_node_get+0x20/0x38
> [C0249F00] [FFFFFFFF] 0xffffffff (unreliable)
> [C0249F10] [C000CCA0] of_find_node_by_type+0x8c/0xd0
> [C0249F30] [C02198A0] get_freq+0x2c/0x80
> [C0249F50] [C021992C] generic_calibrate_decr+0x38/0xdc
> [C0249F70] [C0219E5C] time_init+0x48c/0x530
> [C0249FD0] [C02135F4] start_kernel+0x120/0x250
> [C0249FF0] [00003438] 0x3438
Looks like it could be an unbalanced of_node_put causing a node's
refcount to underflow, probably the root node. The warning in
kref_get has unearthed a couple of these recently, see
http://patchwork.ozlabs.org/linuxppc/patch?id=8840
for example.
next prev parent reply other threads:[~2007-01-16 20:11 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-16 17:20 Warnings when booting rc5 on a mpc83xx based board Joakim Tjernlund
2007-01-16 19:43 ` Kumar Gala
2007-01-16 19:55 ` Joakim Tjernlund
2007-01-16 20:11 ` Nathan Lynch [this message]
2007-01-16 20:36 ` Kumar Gala
2007-01-16 20:51 ` Kumar Gala
2007-01-17 6:09 ` Li Yang-r58472
-- strict thread matches above, loose matches on Subject: below --
2007-01-17 7:57 Joakim Tjernlund
2007-01-17 8:00 ` Liu Dave-r63238
2007-01-17 8:44 ` Grant Likely
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