Hi,
2.6.22-rc3 (with Reiser4 patch) oopses when watching videos with
mplayer using neofb console.
When mplayer starts I get these messages
(this is normal, repeating lines omitted):
neofb: no support for 32bpp
Mode (1024x768) larger than the LCD panel (800x600)
Mode (1152x864) larger than the LCD panel (800x600)
Mode (1024x1024) larger than the LCD panel (800x600)
Mode (1280x1024) larger than the LCD panel (800x600)
Ok, everything seems to work and I can watch the video.
However, when the mplayer stops I get these warnings:
release_dev: driver.table[3] not tty for (tty4)
Warning: dev (tty4) tty->count(3) != #fd's(2) in release_dev
release_dev: driver.table[3] not tty for (tty4)
When I try to repeat the previous step the kernel oopses:
neofb: no support for 32bpp
Mode (1024x768) larger than the LCD panel (800x600)
Mode (1152x864) larger than the LCD panel (800x600)
Mode (1024x1024) larger than the LCD panel (800x600)
Mode (1280x1024) larger than the LCD panel (800x600)
BUG: unable to handle kernel NULL pointer dereference at virtual address 00000731
printing eip:
c021e50e
*pde = 00000000
Oops: 0000 [#1]
Modules linked in: binfmt_misc floppy loop xirc2ps_cs pcmcia usb_storage parport_pc parport yenta_socket rsrc_nonstatic pcmcia_core evdev uhci_hcd usbcore
CPU: 0
EIP: 0060:[<c021e50e>] Not tainted VLI
EFLAGS: 00010202 (2.6.22-rc3-atr #4)
EIP is at vt_ioctl+0xda8/0x1482
eax: 00000679 ebx: 00005600 ecx: c3d41200 edx: 00000000
esi: 0893159c edi: c0386a2f ebp: 00000003 esp: c26a5e28
ds: 007b es: 007b fs: 0000 gs: 0033 ss: 0068
Process mplayer (pid: 1502, ti=c26a5000 task=c3a22500 task.ti=c26a5000)
Stack: fffffffe c26a5f30 c0149fd9 c29fe400 c3d68600 00000001 4642f7b0 c3d0bcc0
c3c32464 00000101 00000001 00000000 4644793c 4642f7b0 00000002 00000005
0000001b 00000005 c34ad240 c3d0bcc0 c1386000 00000002 00000000 c021d766
Call Trace:
[<c0149fd9>] link_path_walk+0xa5/0xaf
[<c021d766>] vt_ioctl+0x0/0x1482
[<c021a395>] tty_ioctl+0xa01/0xa87
[<c0143c5a>] get_empty_filp+0x4f/0xc9
[<c01439bf>] put_filp+0x14/0x31
[<c014ab93>] __path_lookup_intent_open+0x6c/0x75
[<c014ac10>] path_lookup_open+0x20/0x25
[<c014acd9>] open_namei+0x6e/0x51d
[<c0141b0c>] do_filp_open+0x25/0x39
[<c0219994>] tty_ioctl+0x0/0xa87
[<c014ba8a>] do_ioctl+0x3e/0x4d
[<c014bc84>] vfs_ioctl+0x1eb/0x202
[<c014bcce>] sys_ioctl+0x33/0x4d
[<c01022c2>] sysenter_past_esp+0x5f/0x85
=======================
Code: 0f b7 c8 7f 04 85 c9 75 cd 8d 4e 04 89 d8 e8 aa 11 fd ff e9 20 f8 ff ff 8d 04 95 00 00 00 00 03 81 b8 00 00 00 8b 00 85 c0 74 16 <83> b8 b8 00 00 00 00 74 0d 42 83 fa 3f 75 de b0 ff e9 88 f7 ff
EIP: [<c021e50e>] vt_ioctl+0xda8/0x1482 SS:ESP 0068:c26a5e28
BUG: unable to handle kernel NULL pointer dereference at virtual address 0000072d
printing eip:
c021820c
*pde = 00000000
Oops: 0000 [#2]
Modules linked in: binfmt_misc floppy loop xirc2ps_cs pcmcia usb_storage parport_pc parport yenta_socket rsrc_nonstatic pcmcia_core evdev uhci_hcd usbcore
CPU: 0
EIP: 0060:[<c021820c>] Not tainted VLI
EFLAGS: 00210202 (2.6.22-rc3-atr #4)
EIP is at init_dev+0x38c/0x497
eax: c10ba40c ebx: c3d41200 ecx: c1f5fecc edx: 00000003
esi: 00000679 edi: 00400004 ebp: c3d41200 esp: c1f5fe7c
ds: 007b es: 007b fs: 0000 gs: 0033 ss: 0068
Process syslogd (pid: 1503, ti=c1f5f000 task=c3a22500 task.ti=c1f5f000)
Stack: 00000102 00000000 c1fe7aa0 c1f5fecc 00000003 ffffffe9 c1f5ff30 c014a217
c1386000 00000005 c3a5b95c 00002190 c01159ec c3d41200 c1fe7aa0 00400004
00000100 c021a519 00000101 00000003 c01ebea4 00000000 c3d41204 c3a5b95c
Call Trace:
[<c014a217>] do_path_lookup+0x131/0x14c
[<c01159ec>] __capable+0x8/0x1b
[<c021a519>] tty_open+0xfe/0x271
[<c01ebea4>] kobject_get+0xf/0x13
[<c0144ba6>] chrdev_open+0xc1/0xf6
[<c014aec5>] open_namei+0x25a/0x51d
[<c0144ae5>] chrdev_open+0x0/0xf6
[<c01419a8>] __dentry_open+0xb7/0x16d
[<c0141ad8>] nameidata_to_filp+0x24/0x33
[<c0141b19>] do_filp_open+0x32/0x39
[<c0141b62>] do_sys_open+0x42/0xc3
[<c0141c1c>] sys_open+0x1c/0x1e
[<c01022c2>] sysenter_past_esp+0x5f/0x85
=======================
Code: c0 89 c3 74 14 8b 56 20 85 d2 0f 84 de 00 00 00 89 f0 ff d2 e9 d5 00 00 00 8b 44 24 14 e8 eb f8 ff ff 89 f0 e8 e4 f8 ff ff eb 48 <8b> 86 b4 00 00 00 84 c0 78 4b 81 7d 78 04 00 01 00 75 15 83 be
EIP: [<c021820c>] init_dev+0x38c/0x497 SS:ESP 0068:c1f5fe7c
I have been busy and just upgraded from 2.6.19.2, so this bug may have
been introduced anytime since that kernel. Unfortunately, I have a slow
connection and therefore can't bisect this.
--
Tero Roponen
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