From: David Woodhouse <dwmw2@infradead.org>
To: Jan Debiec <jan.debiec@jurca.de>
Cc: "'linux-mtd@lists.infradead.org '"
<linux-mtd@lists.infradead.org>,
"Alex Lennon @ Arcom" <ajlennon@arcom.co.uk>
Subject: Re: JFFS and RTLinux
Date: Thu, 09 Aug 2001 12:12:13 +0100 [thread overview]
Message-ID: <515.997355533@redhat.com> (raw)
In-Reply-To: <3B726C90.F8A182F5@jurca.de>
jan.debiec@jurca.de said:
> unfortunately "stext_lock" tells me nothing (is used in head.S),
> sbc_mediagx_map is a structure used for Arcom GXM board
Spinlock deadlock. Check the spin_lock() and spin_unlock() pairs are evenly
matched in sbc_mediagx.c (they look like they are in the current version of
sbc_gxx.c).
$ gdb vmlinux
(gdb) disassemble 0xc01986d3
It should be in a loop which looks something like
0xc0263620 <stext_lock+64>: cmpb $0x0,0xc02ccdf8
0xc0263627 <stext_lock+71>: repz nop
0xc0263629 <stext_lock+73>: jle 0xc0263620 <stext_lock+64>
0xc026362b <stext_lock+75>: jmp 0xc0105b3f <__down+111>
The place it's jumping to in the final line is the place that's trying to
obtain the (blocked) spinlock.
--
dwmw2
next prev parent reply other threads:[~2001-08-09 11:06 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-07-26 12:29 JFFS and RTLinux Vipin Malik
2001-07-30 14:40 ` Jan Debiec
2001-07-30 15:21 ` Vipin Malik
2001-08-07 7:56 ` David Woodhouse
2001-08-09 10:57 ` Jan Debiec
2001-08-09 11:12 ` David Woodhouse [this message]
-- strict thread matches above, loose matches on Subject: below --
2001-07-26 10:08 Jan Debiec
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