From: mcatos@ics.forth.gr
To: linux-kernel@vger.kernel.org
Subject: Re: Error using the buffer cache
Date: Fri, 4 May 2007 19:35:46 +0300 [thread overview]
Message-ID: <1178296546.463b60e24ce76@webmail.ics.forth.gr> (raw)
I have isolated the problem a little bit. Here's what I do:
struct buffer_head *bh;
sector_t sector = 0;
bh = __bread(bdev, sector, bdev_get_queue(bdev)->hardsect_size);
brelse(bh);
sector++;
bh = __bread(bdev, sector, bdev_get_queue(bdev)->hardsect_size);
brelse(bh);
And I get this error:
BUG: soft lockup detected on CPU#1!
[] show_trace_log_lvl+0x185/0x1a0
[] show_trace+0x12/0x20
[] dump_stack+0x19/0x20
[] softlockup_tick+0x9e/0xd0
[] run_local_timers+0x12/0x20
[] update_process_times+0x34/0x80
[] smp_apic_timer_interrupt+0x6d/0x80
[] apic_timer_interrupt+0x2a/0x30
[] _read_unlock_irq+0x24/0x30
DWARF2 unwinder stuck at _read_unlock_irq+0x24/0x30
Leftover inexact backtrace:
[] show_trace+0x12/0x20
[] dump_stack+0x19/0x20
[] softlockup_tick+0x9e/0xd0
[] run_local_timers+0x12/0x20
[] update_process_times+0x34/0x80
[] smp_apic_timer_interrupt+0x6d/0x80
[] apic_timer_interrupt+0x2a/0x30
[] find_lock_page+0x85/0xa0
[] find_or_create_page+0x3b/0xb0
[] __getblk+0xef/0x2e0
[] __bread+0x12/0xb0
What am I doing wrong?
-------------------------------------------------
This mail sent through IMP: http://horde.org/imp/
next reply other threads:[~2007-05-04 16:36 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-04 16:35 mcatos [this message]
-- strict thread matches above, loose matches on Subject: below --
2007-05-03 13:03 Error using the buffer cache Thanos Makatos
2007-05-03 12:36 mcatos
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1178296546.463b60e24ce76@webmail.ics.forth.gr \
--to=mcatos@ics.forth.gr \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.