Bug#545961: linux-image-2.6-686: acpi-module video always crashes
Package: linux-image-2.6-686
Version: 2.6.26+17+lenny1
Severity: normal
On my laptop Asus A6L the module 'video' from the acpi subsystem
always craches with the official kernel image 2.6-686. The relevant
system message is reproduced below. This has bin so ever since I
conducted a distupgrade from Etch in May.
Without any counter measure the proc filesystem contains a visible
duplicate of
/proc/acpi/video/VGA/.
The duplicate filesystem trees are carrying identical inode-numbers
for all contained entries.
The remedy to blacklist 'video' in /etc/modprobe.d/ remove the
crash message (and /proc/acpi/video/), and seems not to affect
the running sustem in any manner what so ever.
------
Printout taken from bootlog when 'acpi/video' is autoinserted:
[ 14.019013] asus-laptop: Asus Laptop Support version 0.42
[ 14.023807] asus-laptop: A6L model detected
[ 14.042832] Registered led device: asus::mail
[ 14.565264] ACPI: AC Adapter [AC0] (on-line)
[ 14.565562] ACPI: Battery Slot [BAT0] (battery absent)
[ 14.660644] input: Video Bus as /class/input/input4
[ 14.690530] ACPI: Video Device [VGA] (multi-head: yes rom: no post: no)
[ 14.690623] proc_dir_entry 'VGA' already registered
[ 14.690686] Pid: 1518, comm: modprobe Not tainted 2.6.26-2-686 #1
[ 14.690756] [<c01a46c1>] proc_register+0xb4/0x11f
[ 14.690853] [<c01a48a4>] proc_mkdir_mode+0x2b/0x3d
[ 14.690946] [<f8a78ff3>] acpi_video_bus_add+0x177/0xaef [video]
[ 14.691046] [<c01ad69c>] sysfs_find_dirent+0x13/0x23
[ 14.691142] [<c01ae218>] sysfs_create_link+0x99/0xdd
[ 14.691237] [<c0216b92>] acpi_device_probe+0x33/0x7c
[ 14.691332] [<c023ae4d>] __driver_attach+0x0/0x55
[ 14.691427] [<c023add6>] driver_probe_device+0xb5/0x12c
[ 14.691522] [<c023ae84>] __driver_attach+0x37/0x55
[ 14.691615] [<c023a71f>] bus_for_each_dev+0x37/0x59
[ 14.691710] [<c023ac71>] driver_attach+0x11/0x13
[ 14.691802] [<c023ae4d>] __driver_attach+0x0/0x55
[ 14.691894] [<c023aa73>] bus_add_driver+0x8a/0x1a7
[ 14.691987] [<c01ddfd0>] kset_find_obj+0x20/0x4b
[ 14.692094] [<c023b065>] driver_register+0x6d/0xc1
[ 14.692187] [<f895602f>] acpi_video_init+0x2f/0x4d [video]
[ 14.692282] [<c013f6b0>] sys_init_module+0x187a/0x19ea
[ 14.692378] [<c018a771>] seq_open+0x4d/0x6a
[ 14.692470] [<c0115b8f>] do_page_fault+0x2a3/0x5c0
[ 14.692570] [<c01664e0>] vma_link+0xa3/0xbd
[ 14.692664] [<c0216e7b>] acpi_bus_register_driver+0x0/0x38
[ 14.692767] [<c0103853>] sysenter_past_esp+0x78/0xb1
[ 14.692866] =======================
[ 14.693201] input: Video Bus as /class/input/input5
[ 14.722371] ACPI: Video Device [VGA] (multi-head: yes rom: no post: no)
...... (Booting continues to a perfectly usable system!) ......
-- System Information:
Debian Release: 5.0.3
APT prefers stable
APT policy: (500, 'stable'), (90, 'testing'), (80, 'unstable')
Architecture: i386 (i686)
Kernel: Linux 2.6.26-2-686 (SMP w/1 CPU core)
Locale: LANG=sv_SE.ISO-8859-15, LC_CTYPE=sv_SE.ISO-8859-15 (charmap=ISO-8859-15)
Shell: /bin/sh linked to /bin/bash
Versions of packages linux-image-2.6-686 depends on:
ii linux-image-2.6.26-2-686 2.6.26-19 Linux 2.6.26 image on PPro/Celeron
linux-image-2.6-686 recommends no packages.
linux-image-2.6-686 suggests no packages.
-- no debconf information
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