Messages in this thread |  | | | Date | Sun, 09 Mar 2008 14:41:01 +0100 | | From | Jiri Slaby <> | | Subject | Re: [patch] drivers/char/esp.c: fix bootup lockup |
On 03/07/2008 11:08 AM, Ingo Molnar wrote:
> 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.
|  |