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Re: [patch] drivers/char/esp.c: fix bootup lockup
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From:
Jiri Slaby <jirislaby@...>
To: Ingo Molnar <mingo@...>
Cc: Alan Cox <alan@...>, Linux Kernel Mailing List <linux-kernel@...>, Rafael J. Wysocki <rjw@...>, Linus Torvalds <torvalds@...>
Subject:
Re: [patch] drivers/char/esp.c: fix bootup lockup
Date: Sunday, March 9, 2008 - 9:41 am
On 03/07/2008 11:08 AM, Ingo Molnar wrote:
quoted text
> randconfig testing found a bootup lockup in drivers/char/esp.c - find > the fix below. Not sure why it became more prominent in 2.6.25-rc4, the > bug seems rather old and i've been doing allyesconfig bootups for ages > with CONFIG_ESP enabled. > > -------------> > Subject: drivers/char/esp.c: fix bootup lockup > From: Ingo Molnar <mingo@elte.hu> > Date: Fri Mar 07 10:47:43 CET 2008 > > fix this bootup lockup: > > PM: Adding info for No Bus:ttyP63 > ttyP32 at 0x0240 (irq = 0) is an ESP primary port > BUG: spinlock lockup on CPU#0, swapper/1, f56dd004 > Pid: 1, comm: swapper Not tainted 2.6.25-rc4-sched-devel.git-x86-latest.git #402 [<c03ac6f4>] _raw_spin_lock+0x134/0x140 > [<c08649be>] _spin_lock_irqsave+0x5e/0x80 > [<c0b9fbfe>] ? espserial_init+0x2be/0x6e0 > [<c0b9fbfe>] espserial_init+0x2be/0x6e0 > [<c0b877a3>] kernel_init+0x83/0x260 > [<c0b9f940>] ? espserial_init+0x0/0x6e0 > [<c010416a>] ? restore_nocheck_notrace+0x0/0xe > [<c0b87720>] ? kernel_init+0x0/0x260 > [<c0b87720>] ? kernel_init+0x0/0x260 > [<c0104507>] kernel_thread_helper+0x7/0x10 > ======================= > > kzalloc() is not the way to initialize spinlocks anymore.
Good catch, thanks. --
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Messages in current thread:
Linux 2.6.25-rc4
, Linus Torvalds
, (Wed Mar 5, 1:03 am)
[patch] drivers/char/esp.c: fix bootup lockup (was: Re: Linu...
, Ingo Molnar
, (Fri Mar 7, 6:08 am)
Re: [patch] drivers/char/esp.c: fix bootup lockup
, Jiri Slaby
, (Sun Mar 9, 9:41 am)
Re: [patch] drivers/char/esp.c: fix bootup lockup
, Rafael J. Wysocki
, (Sun Mar 9, 6:49 pm)
Re: [patch] drivers/char/esp.c: fix bootup lockup
, Jiri Slaby
, (Sun Mar 9, 7:04 pm)
Re: Linux 2.6.25-rc4
, Ingo Molnar
, (Thu Mar 6, 5:00 am)
Re: Linux 2.6.25-rc4
, Jens Axboe
, (Thu Mar 6, 8:59 am)
Re: Linux 2.6.25-rc4
, Bartlomiej Zolnierkiewicz...
, (Thu Mar 6, 9:38 am)
Re: Linux 2.6.25-rc4
, Ingo Molnar
, (Thu Mar 6, 9:33 am)
Re: Linux 2.6.25-rc4
, Bartlomiej Zolnierkiewicz...
, (Thu Mar 6, 10:06 am)
Re: Linux 2.6.25-rc4
, Jens Axboe
, (Thu Mar 6, 9:55 am)
Re: Linux 2.6.25-rc4
, Anders Eriksson
, (Thu Mar 6, 5:17 pm)
Re: Linux 2.6.25-rc4
, Jens Axboe
, (Fri Mar 7, 4:48 am)
Re: Linux 2.6.25-rc4
, Anders Eriksson
, (Fri Mar 7, 6:04 pm)
Re: Linux 2.6.25-rc4
, Linus Torvalds
, (Sat Mar 8, 4:22 pm)
Re: Linux 2.6.25-rc4
, Anders Eriksson
, (Sat Mar 8, 5:05 pm)
Re: Linux 2.6.25-rc4
, Anders Eriksson
, (Mon Mar 10, 4:55 am)
Re: Linux 2.6.25-rc4
, Bartlomiej Zolnierkiewicz...
, (Mon Mar 10, 8:36 am)
Re: Linux 2.6.25-rc4
, Rafael J. Wysocki
, (Mon Mar 10, 9:10 am)
Re: Linux 2.6.25-rc4
, Bartlomiej Zolnierkiewicz...
, (Mon Mar 10, 10:04 am)
Re: Linux 2.6.25-rc4
, Anders Eriksson
, (Sun Mar 16, 10:01 am)
Re: Linux 2.6.25-rc4
, Linus Torvalds
, (Sun Mar 16, 12:56 pm)
Re: Linux 2.6.25-rc4
, Linus Torvalds
, (Sun Mar 16, 1:13 pm)
Re: Linux 2.6.25-rc4
, Anders Eriksson
, (Sun Mar 16, 2:18 pm)
Re: Linux 2.6.25-rc4
, Bartlomiej Zolnierkiewicz...
, (Sun Mar 16, 2:07 pm)
Re: Linux 2.6.25-rc4
, Linus Torvalds
, (Sun Mar 16, 2:13 pm)
Re: Linux 2.6.25-rc4
, Bartlomiej Zolnierkiewicz...
, (Sun Mar 16, 3:54 pm)
Re: Linux 2.6.25-rc4
, Anders Eriksson
, (Sun Mar 16, 6:59 pm)
Re: Linux 2.6.25-rc4
, Linus Torvalds
, (Sun Mar 16, 7:27 pm)
Re: Linux 2.6.25-rc4
, Anders Eriksson
, (Mon Mar 17, 5:09 pm)
Re: Linux 2.6.25-rc4
, Linus Torvalds
, (Mon Mar 17, 6:52 pm)
Re: Linux 2.6.25-rc4
, Anders Eriksson
, (Mon Mar 17, 8:18 pm)
Re: Linux 2.6.25-rc4
, Bartlomiej Zolnierkiewicz...
, (Tue Mar 18, 9:03 am)
Re: Linux 2.6.25-rc4
, Anders Eriksson
, (Tue Mar 18, 9:32 am)
Re: Linux 2.6.25-rc4
, Linus Torvalds
, (Tue Mar 18, 11:41 am)
Re: Linux 2.6.25-rc4
, Bartlomiej Zolnierkiewicz...
, (Tue Mar 18, 9:21 pm)
Re: Linux 2.6.25-rc4
, Linus Torvalds
, (Tue Mar 18, 9:28 pm)
Re: Linux 2.6.25-rc4
, Bartlomiej Zolnierkiewicz...
, (Tue Mar 18, 11:24 pm)
Re: Linux 2.6.25-rc4
, Linus Torvalds
, (Tue Mar 18, 11:28 pm)
Re: Linux 2.6.25-rc4
, Linus Torvalds
, (Tue Mar 18, 11:56 pm)
Re: Linux 2.6.25-rc4
, Bartlomiej Zolnierkiewicz...
, (Wed Mar 19, 12:03 am)
Re: Linux 2.6.25-rc4
, Linus Torvalds
, (Wed Mar 19, 12:48 am)
Re: Linux 2.6.25-rc4
, Bartlomiej Zolnierkiewicz...
, (Wed Mar 19, 7:14 am)
Re: Linux 2.6.25-rc4
, Anders Eriksson
, (Tue Mar 18, 12:30 pm)
Re: Linux 2.6.25-rc4
, Linus Torvalds
, (Tue Mar 18, 12:47 pm)
Re: Linux 2.6.25-rc4
, Anders Eriksson
, (Tue Mar 18, 5:02 pm)
Re: Linux 2.6.25-rc4
, Bartlomiej Zolnierkiewicz...
, (Tue Mar 18, 10:48 am)
Re: Linux 2.6.25-rc4
, Anders Eriksson
, (Tue Mar 18, 11:10 am)
Re: Linux 2.6.25-rc4
, Bartlomiej Zolnierkiewicz...
, (Sun Mar 16, 2:36 pm)
Re: Linux 2.6.25-rc4
, Anders Eriksson
, (Sun Mar 16, 3:08 pm)
Re: Linux 2.6.25-rc4
, Alan Cox
, (Sun Mar 16, 2:56 pm)
Re: Linux 2.6.25-rc4
, Linus Torvalds
, (Sun Mar 16, 3:39 pm)
Re: Linux 2.6.25-rc4
, Alan Cox
, (Sun Mar 16, 4:31 pm)
Re: Linux 2.6.25-rc4
, Mark Lord
, (Fri Mar 21, 11:03 am)
Re: Linux 2.6.25-rc4
, Alan Cox
, (Fri Mar 21, 10:49 am)
Re: Linux 2.6.25-rc4
, Linus Torvalds
, (Sun Mar 16, 5:06 pm)
Re: Linux 2.6.25-rc4
, Bartlomiej Zolnierkiewicz...
, (Sun Mar 16, 2:26 pm)
Re: Linux 2.6.25-rc4
, Jens Axboe
, (Mon Mar 17, 3:23 am)
Re: Linux 2.6.25-rc4
, Anders Eriksson
, (Sun Mar 16, 2:25 pm)
Re: Linux 2.6.25-rc4
, Anders Eriksson
, (Sun Mar 16, 2:23 pm)
Re: Linux 2.6.25-rc4
, Alan Cox
, (Sun Mar 16, 2:44 pm)
Re: Linux 2.6.25-rc4
, Bartlomiej Zolnierkiewicz...
, (Sun Mar 16, 10:29 am)
Re: Linux 2.6.25-rc4
, Anders Eriksson
, (Sun Mar 16, 10:29 am)
Re: Linux 2.6.25-rc4
, Bartlomiej Zolnierkiewicz...
, (Sun Mar 16, 11:14 am)
Re: Linux 2.6.25-rc4
, Anders Eriksson
, (Mon Mar 10, 9:19 am)
Re: Linux 2.6.25-rc4
, Bartlomiej Zolnierkiewicz...
, (Mon Mar 10, 9:56 am)
Re: Linux 2.6.25-rc4
, Ingo Molnar
, (Thu Mar 6, 9:06 am)
Re: Linux 2.6.25-rc4
, Ingo Molnar
, (Fri Mar 7, 4:53 am)
Re: Linux 2.6.25-rc4
, Pavel Machek
, (Sat Mar 8, 7:36 pm)
Re: Linux 2.6.25-rc4
, Andi Kleen
, (Sun Mar 9, 8:55 am)
Re: Linux 2.6.25-rc4
, Pavel Machek
, (Mon Mar 10, 6:10 am)
Re: Linux 2.6.25-rc4
, Andi Kleen
, (Mon Mar 10, 7:52 am)
Re: Linux 2.6.25-rc4
, Ingo Molnar
, (Sun Mar 9, 7:59 am)
Re: Linux 2.6.25-rc4
, Jens Axboe
, (Fri Mar 7, 4:57 am)
Re: Linux 2.6.25-rc4
,
, (Fri Mar 7, 11:20 am)
Re: Linux 2.6.25-rc4
, Ingo Molnar
, (Fri Mar 7, 5:02 am)
Re: Linux 2.6.25-rc4
, Paul Mackerras
, (Fri Mar 7, 5:59 am)
Re: Linux 2.6.25-rc4
, Jens Axboe
, (Thu Mar 6, 9:12 am)
Re: Linux 2.6.25-rc4
, FUJITA Tomonori
, (Wed Mar 5, 4:09 am)
Re: Linux 2.6.25-rc4
, Grant Grundler
, (Wed Mar 5, 12:46 pm)
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