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Message-ID: <6257.1178729509@turing-police.cc.vt.edu>
Date: Wed, 09 May 2007 12:51:49 -0400
From: Valdis.Kletnieks@...edu
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org
Subject: Re: 2.6.21-mm2 - hanging with initcall_debug and netconsole
On Wed, 09 May 2007 01:23:22 PDT, Andrew Morton said:
> ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.21/2.6.21-mm2/
So I have a canned grub config for booting with netconsole, initcall_debug, and
all that fun stuff. Tried it on 21-mm2, and it wedged up hard here:
[ 66.842587] TCP: Hash tables configured (established 131072 bind 65536)
[ 66.842591] TCP reno registered
[ 66.845424] initcall 0xffffffff806ff7c6: inet_init+0x0/0x34d() returned 0.
[ 66.845437] initcall 0xffffffff806ff7c6 ran for 14 msecs: inet_init+0x0/0x34d()
[ 66.845443] Calling initcall 0xffffffff806e28eb: populate_rootfs+0x0/0xea()
[ 66.845566] checking if image is initramfs... it is
[ 66.978816] Freeing initrd memory: 1824k freed
[ 66.979130] initcall 0xffffffff806e28eb: populate_rootfs+0x0/0xea() returned 0.
[ 66.979141] initcall 0xffffffff806e28eb ran for 127 msecs: populate_rootfs+0x0/0xea()
[ 66.979146] Calling initcall 0xffffffff8020cf78: time_init_device+0x0/0x22()
Total brick, no sysrq. Had to power cycle. Oddly enough, it boots OK
with the same grub line, but minus 'earlyprintk=vga initcall_debug':
[ 26.768561] TCP: Hash tables configured (established 131072 bind 65536)
[ 26.768566] TCP reno registered
[ 26.771502] checking if image is initramfs... it is
[ 26.904772] Freeing initrd memory: 1824k freed
[ 26.910854] audit: initializing netlink socket (disabled)
[ 26.910874] audit(1178725351.514:1): initialized
[ 26.911253] VFS: Disk quotas dquot_6.5.1
(My guess is that initcall_debug is trashing some timing constraint that
time_init_device is relying on?)
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