From: Jiri Slaby <jirislaby@gmail.com>
To: Felipe Dias <felipediassss@gmail.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: textsearch in module = BUG: scheduling while atomic
Date: Sun, 04 Nov 2007 23:16:42 +0100 [thread overview]
Message-ID: <472E44CA.6090600@gmail.com> (raw)
In-Reply-To: <3c16e8dc0711041405m33c5e54dw6c8d51ac600d51cf@mail.gmail.com>
On 11/04/2007 11:05 PM, Felipe Dias wrote:
> Ow sorry... the warning:
>
> BUG: scheduling while atomic: gnome-cups-icon/0x00000101/3827
> [<c02aefe6>] __sched_text_start+0x56/0x7c8
> [<c0130139>] autoremove_wake_function+0x14/0x33
> [<c0119284>] __wake_up_common+0x35/0x53
> [<c01197f6>] __wake_up+0x32/0x43
> [<c02af847>] wait_for_completion+0x6a/0x9f
> [<c011b6ae>] default_wake_function+0x0/0xc
> [<c012cdff>] call_usermodehelper_keys+0xad/0xc5
> [<c012ceec>] request_module+0xd5/0xe6
Seems like it is not inteded for using in atomic at all (you probably passed an
unknown algo here to the prepare function). You seem to have to use a workqueue
if it is possible or prepare the serach before the interrupt occurs. Post your
code if you want more appropriate answer.
> [<c01b2762>] __next_cpu+0x12/0x21
> [<c0119e54>] find_busiest_group+0x1d6/0x55a
> [<c01ba672>] textsearch_prepare+0x8c/0x11a
> [<c017c11d>] __find_get_block_slow+0x127/0x131
> [<f9198451>] hook_test+0x4c/0xb6 [test_mod]
> [<c017c3f0>] __find_get_block+0x13f/0x149
> [<c026ef84>] nf_iterate+0x38/0x6a
> [<c0273f1c>] ip_rcv_finish+0x0/0x294
> [<c026f0c1>] nf_hook_slow+0x4d/0xb5
> [<c0273f1c>] ip_rcv_finish+0x0/0x294
> [<c027462f>] ip_rcv+0x20b/0x4bd
> [<c0273f1c>] ip_rcv_finish+0x0/0x294
> [<f8ccd2ad>] search_by_key+0x17f/0xe87 [reiserfs]
> [<c0127b32>] del_timer_sync+0xa/0x14
> [<c02afdfb>] schedule_timeout+0x79/0x8d
> [<c025aee2>] netif_receive_skb+0x2ef/0x309
> [<c026e201>] __nla_put+0xe/0x25
> [<c025ca16>] process_backlog+0x7c/0xe9
> [<c025cbe6>] net_rx_action+0x95/0x186
> [<c012469f>] __do_softirq+0x6c/0xcf
> [<c0124734>] do_softirq+0x32/0x36
> [<c0124900>] local_bh_enable+0x7b/0x89
> [<c025ced9>] dev_queue_xmit+0x202/0x221
> [<c0279686>] ip_output+0x269/0x2a3
> [<c0278d95>] ip_queue_xmit+0x358/0x39a
> [<c014b589>] __alloc_pages+0x64/0x2a8
> [<c015e2ee>] cache_alloc_refill+0x74/0x45f
> [<c028ba0f>] tcp_v4_send_check+0x86/0xbc
> [<c0286f8f>] tcp_transmit_skb+0x618/0x652
> [<c0256fe4>] __alloc_skb+0x47/0x104
> [<c0289319>] tcp_connect+0x2a3/0x31d
> [<c028c0cd>] tcp_v4_connect+0x493/0x5a4
> [<c0171eb3>] touch_atime+0x8b/0xac
> [<c0296f23>] inet_stream_connect+0x87/0x20d
> [<c01b6856>] copy_from_user+0x23/0x4f
> [<c02518b5>] sys_connect+0x82/0xad
> [<c02b0c6c>] _spin_lock_bh+0x8/0x18
> [<c02b0c6c>] _spin_lock_bh+0x8/0x18
> [<c02538c3>] release_sock+0x12/0x8c
> [<c027d938>] tcp_setsockopt+0x309/0x321
> [<c016fb25>] d_alloc+0x14b/0x17e
> [<c016f9d6>] d_instantiate+0x66/0x6a
> [<c02532a4>] sock_common_setsockopt+0x1d/0x22
> [<c0251814>] sys_setsockopt+0x88/0xa7
> [<c0252e33>] sys_socketcall+0x8f/0x242
> [<c0103d16>] sysenter_past_esp+0x5f/0x85
> =======================
regards,
--
Jiri Slaby (jirislaby@gmail.com)
Faculty of Informatics, Masaryk University
next prev parent reply other threads:[~2007-11-04 22:16 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-04 17:15 textsearch in module = BUG: scheduling while atomic Felipe Dias
2007-11-04 17:57 ` Jiri Slaby
[not found] ` <3c16e8dc0711041222w6bc67b3fn8320e982ffd723b0@mail.gmail.com>
[not found] ` <472E346E.90309@gmail.com>
2007-11-04 22:05 ` Felipe Dias
2007-11-04 22:16 ` Jiri Slaby [this message]
2007-11-04 22:19 ` Jiri Slaby
2007-11-04 22:57 ` Felipe Dias
2007-11-05 14:02 ` Jiri Slaby
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=472E44CA.6090600@gmail.com \
--to=jirislaby@gmail.com \
--cc=felipediassss@gmail.com \
--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.