[Bug 21597] New: stopping gdm crashes

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Ubuntu | gdm

           Summary: stopping gdm crashes
           Product: Ubuntu
           Version: unspecified
          Platform: i386
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: gdm
        AssignedTo: seb128 at ubuntu.com
        ReportedBy: haqdaq at texel.com
         QAContact: desktop-bugs at lists.ubuntu.com


When I try to stop gdm, it crashes. It first happened when I wanted to shutdown,
black screen, nothing worked. When I later tried ctrl+alt+backspace, again black
screen, nothing responds (even ctrl-alt-F1 and such things)... when I reboot
from the console, it halts at 'Stopping GDM', and when I do /etc/init.d/gdm stop
in the console I get a bunch of kernel message's (listed below), while it
reports gdm is stopped correctly. When I try to reboot afterwards, it still
wants to close gdm and crashes.

I use Ubuntu dapper with the most recent updates. I have an ati radeon 9700 with
the newest ati drivers from their site.

Kernel blabla:
[4294957.459000] ------------[ cut here ]------------
[4294957.459000] kernel BUG at mm/swap.c:49!
[4294957.459000] invalid operand: 0000 [#2]
[4294957.459000] PREEMPT 
[4294957.459000] Modules linked in: rfcomm l2cap bluetooth cpufreq_userspace
cpufreq_stats freq_table cpufreq_powersave cpufreq_ondemand cpufreq_conservative
fglrx video tc1100_wmi sony_acpi pcc_acpi hotkey dev_acpi button battery
container ac ipv6 af_packet nls_cp437 ntfs dm_mod sr_mod sbp2 scsi_mod lp
snd_emu10k1_synth snd_emux_synth snd_seq_virmidi snd_seq_midi_emul snd_seq_dummy
snd_seq_oss snd_seq_midi snd_seq_midi_event snd_seq spca5xx videodev i2c_viapro
snd_emu10k1 i2c_core snd_rawmidi snd_seq_device snd_ac97_codec snd_pcm_oss
snd_mixer_oss 8139cp parport_pc snd_pcm snd_timer snd_ac97_bus parport
snd_page_alloc snd_util_mem floppy snd_hwdep snd soundcore via_ircc irda
crc_ccitt psmouse uhci_hcd 8139too ohci1394 ieee1394 pcspkr rtc serio_raw
usbcore mii emu10k1_gp gameport via_agp agpgart shpchp pci_hotplug evdev md_mod
ext3 jbd ide_generic ide_cd cdrom ide_disk via82cxxx generic pdc202xx_old
thermal processor fan capability commoncap vga16fb cfbcopyarea vgastate
cfbimgblt cfbfillrect fbcon tileblit font bitblit softcursor
[4294957.459000] CPU:    0
[4294957.459000] EIP:    0060:[<c014919d>]    Tainted: P    B VLI
[4294957.459000] EFLAGS: 00210256   (2.6.15-9-386) 
[4294957.459000] EIP is at put_page+0x6d/0x90
[4294957.459000] eax: 00000000   ebx: fffb4b38   ecx: 00000010   edx: c10366e0
[4294957.459000] esi: b76ce000   edi: c10366e0   ebp: 00000020   esp: f7ba5e88
[4294957.459000] ds: 007b   es: 007b   ss: 0068
[4294957.459000] Process Xorg (pid: 4040, threadinfo=f7ba4000 task=f790f070)
[4294957.459000] Stack: c014e0c0 c10366e0 c10366e0 dfb72a00 ffffffff 00000000
dfb78b74 b76cf000 
[4294957.459000]        f7ba5f14 dfb78b74 c014e322 c03ccb68 f7ef3754 dfb78b74
b76ce000 b76cf000 
[4294957.459000]        f7ba5f14 00000000 dfb78b74 b76cefff b76ce000 f7ef3754
b76cf000 f7ba4000 
[4294957.459000] Call Trace:
[4294957.459000]  [<c014e0c0>] zap_pte_range+0x120/0x2a0
[4294957.459000]  [<c014e322>] unmap_page_range+0xe2/0x130
[4294957.459000]  [<c014e42e>] unmap_vmas+0xbe/0x210
[4294957.459000]  [<c0152920>] unmap_region+0x80/0x120
[4294957.459000]  [<c0152bef>] do_munmap+0xaf/0xf0
[4294957.459000]  [<c0152c6a>] sys_munmap+0x3a/0x60
[4294957.459000]  [<c010302b>] sysenter_past_esp+0x54/0x79
[4294957.459000] Code: e9 59 03 00 00 8b 52 0c 8b 02 f6 c4 40 75 26 89 d0 8b 40
04 40 74 23 83 42 04 ff 0f 98 c0 84 c0 74 c1 8b 4a 30 89 54 24 04 ff e1 <0f> 0b
31 00 4d d3 2f c0 eb a3 8b 42 0c eb d7 0f 0b 29 00 4d d3 
[4294957.459000]  <6>note: Xorg[4040] exited with preempt_count 3
[4294957.673000] scheduling while atomic: Xorg/0x00000003/4040
[4294957.679000]  [<c02e7f62>] schedule+0x5c2/0x690
[4294957.685000]  [<c011c48b>] release_console_sem+0xeb/0xf0
[4294957.691000]  [<c011c2ec>] vprintk+0x31c/0x340
[4294957.697000]  [<c02e8cb5>] rwsem_down_read_failed+0x95/0x1b0
[4294957.703000]  [<c011f851>] .text.lock.exit+0x27/0x86
[4294957.709000]  [<c011e4f9>] do_exit+0xf9/0x420
[4294957.714000]  [<c0104c10>] do_invalid_op+0x0/0xa0
[4294957.720000]  [<c0104953>] die+0x163/0x170
[4294957.725000]  [<c0104c9c>] do_invalid_op+0x8c/0xa0
[4294957.730000]  [<c014919d>] put_page+0x6d/0x90
[4294957.735000]  [<c0277ba8>] memcpy_toiovec+0x48/0x70
[4294957.739000]  [<c02df194>] unix_stream_recvmsg+0x1d4/0x430
[4294957.744000]  [<c0142cc7>] bad_range+0x27/0x40
[4294957.749000]  [<c014306c>] free_pages_bulk+0x1fc/0x2b0
[4294957.753000]  [<c01041df>] error_code+0x4f/0x60
[4294957.758000]  [<c014919d>] put_page+0x6d/0x90
[4294957.763000]  [<c014e0c0>] zap_pte_range+0x120/0x2a0
[4294957.768000]  [<c014e322>] unmap_page_range+0xe2/0x130
[4294957.773000]  [<c014e42e>] unmap_vmas+0xbe/0x210
[4294957.778000]  [<c0152920>] unmap_region+0x80/0x120
[4294957.783000]  [<c0152bef>] do_munmap+0xaf/0xf0
[4294957.787000]  [<c0152c6a>] sys_munmap+0x3a/0x60
[4294957.791000]  [<c010302b>] sysenter_past_esp+0x54/0x79

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