From: "Ben Castricum" <lk0810@bencastricum.nl>
To: <linux-kernel@vger.kernel.org>
Subject: Re: NULL pointer derefence since 2.6.27 in (e)poll
Date: Sun, 19 Oct 2008 20:50:09 +0200 [thread overview]
Message-ID: <C7D8EA1750C540FF84D4C36F414AD7C3@Seven> (raw)
On Sun, 19 Oct 2008, Hugh Dickins wrote:
> Isn't it the issue fixed by
>
> http://marc.info/?l=linux-kernel&m=122428548613067&w=2
I am not sure, below is the latest bug message. My knowledge of git is very
limited, how can I tell if this is before or after the patch?
Thanks,
Ben
BUG: unable to handle kernel NULL pointer dereference at 00000020
IP: [<b0254b74>] sock_poll+0xc/0x12
*pde = 00000000
Oops: 0000 [#1] SMP
last sysfs file:
/sys/devices/pci0000:00/0000:00:1f.3/i2c-adapter/i2c-0/0-002e/cpu0_vid
Modules linked in: ipt_MASQUERADE ipt_REJECT ipt_LOG xt_recent xt_tcpudp
xt_state iptable_filter nf_conntrack_ftp iptable_nat ip_tables nf_nat
x_tables n
f_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 af_packet usb_storage usbhid
8139too mii tg3 libphy cdc_acm ehci_hcd uhci_hcd usbcore lm85 hwmon_vid
i2c_i80
1 softdog rtc ext2 [last unloaded: firmware_class]
Pid: 1717, comm: squid Not tainted (2.6.27-05178-g2e532d6 #111) HP d530
SFF(PL110ES)
EIP: 0060:[<b0254b74>] EFLAGS: 00010246 CPU: 0
EIP is at sock_poll+0xc/0x12
EAX: ea872d80 EBX: 00000000 ECX: 00000000 EDX: eee50e00
ESI: e9a9bf00 EDI: ef304b80 EBP: ea84af44 ESP: ea84af40
DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
Process squid (pid: 1717, ti=ea84a000 task=ea96e330 task.ti=ea84a000)
Stack:
e9a9bf0c ea84afb0 b017ff04 ea84af9c 00000002 00000000 eabe1300 ef304b98
00000003 ef304bac ef304ba4 e9a9bf0c ef304ba0 ef304b94 00000046 ef304b84
ea84af9c b03ce000 b014248d ea84af94 b0126765 ea84afb0 b0105909 ea84af9c
Call Trace:
[<b017ff04>] ? sys_epoll_wait+0x245/0x3a7
[<b014248d>] ? handle_fasteoi_irq+0x0/0xad
[<b0126765>] ? irq_exit+0x53/0x77
[<b0105909>] ? do_IRQ+0xae/0xc4
[<b0103905>] ? sysenter_do_call+0x12/0x25
Code: 8b 58 54 b8 ea ff ff ff 85 db 74 0c ff 75 0c ff 75 08 89 f0 ff d3 5a
59 8d 65 f8 5b 5e 5d c3 55 89 e5 53 89 d1 8b 50 6c 8b 5a 0c <ff> 53 20 5b 5d
c
3 55 89 e5 53 89 d1 8b 50 6c 8b 5a 0c ff 53 4c
EIP: [<b0254b74>] sock_poll+0xc/0x12 SS:ESP 0068:ea84af40
---[ end trace 6e50fb78d788d751 ]---
next reply other threads:[~2008-10-19 18:50 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-19 18:50 Ben Castricum [this message]
2008-10-19 21:25 ` NULL pointer derefence since 2.6.27 in (e)poll Davide Libenzi
[not found] <fa.tyZSmpETPCXhUoPJmJ8KenIDR9A@ifi.uio.no>
[not found] ` <fa.LCxpt1ZiVhg13wi1ociM3pxlA5Y@ifi.uio.no>
[not found] ` <fa.OzlOaDLw1wzOiIOE3c5y1CNHYtk@ifi.uio.no>
2008-10-26 0:03 ` Michael B. Trausch
-- strict thread matches above, loose matches on Subject: below --
2008-10-19 11:02 Ben Castricum
2008-10-19 11:45 ` Pekka Enberg
2008-10-19 12:47 ` Hugh Dickins
2008-10-19 14:15 ` Davide Libenzi
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=C7D8EA1750C540FF84D4C36F414AD7C3@Seven \
--to=lk0810@bencastricum.nl \
--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.