Comment 5 for bug 107325

I get the same kernel error but with kernel 2.6.22-14, in gutsy. I'm using a pentium 4 cpu. This bug may be a duplicate (or vice-versa) of bug #123223. I get random freeze every 1-2 day or so. Last time my system crash was just after starting firefox. The system memory was far from full (about 500 mb used in cache). System froze hard, after reboot I saw this in syslog :

Oct 11 20:43:19 nec kernel: [29991.443174] Eeek! page_mapcount(page) went negative! (-1)
Oct 11 20:43:19 nec kernel: [29991.443196] page pfn = 2ece0
Oct 11 20:43:19 nec kernel: [29991.443200] page->flags = 40000824
Oct 11 20:43:19 nec kernel: [29991.443203] page->count = 2
Oct 11 20:43:19 nec kernel: [29991.443206] page->mapping = effe4654
Oct 11 20:43:19 nec kernel: [29991.443223] vma->vm_ops = generic_file_vm_ops+0x0/0x18
Oct 11 20:43:19 nec kernel: [29991.443237] vma->vm_ops->nopage = filemap_nopage+0x0/0x340
Oct 11 20:43:19 nec kernel: [29991.443243] vma->vm_file->f_op->mmap = generic_file_mmap+0x0/0x40
Oct 11 20:43:19 nec kernel: [29991.443313] ------------[ cut here ]------------
Oct 11 20:43:19 nec kernel: [29991.443316] kernel BUG at /build/buildd/linux-source-2.6.22-2.6.22/mm/rmap.c:628!
Oct 11 20:43:19 nec kernel: [29991.443321] invalid opcode: 0000 [#1]
Oct 11 20:43:19 nec kernel: [29991.443324] SMP
Oct 11 20:43:19 nec kernel: [29991.443328] Modules linked in: vmnet(P) vmmon(P) binfmt_misc rfcomm l2cap bluetooth ppdev r128 drm cpufreq_stats cpufreq_ondemand cpufreq_powersave cpufreq_conservative cpufreq_userspace ac button container dock sbs video battery parport_pc lp parport p4_clockmod speedstep_lib freq_table snd_via82xx gameport snd_ac97_codec ac97_bus snd_pcm_oss snd_mixer_oss snd_pcm snd_page_alloc snd_mpu401_uart snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device i2c_viapro i2c_core via_ircc snd pcspkr psmouse serio_raw soundcore via_agp irda shpchp pci_hotplug agpgart crc_ccitt ipv6 nls_cp437 nls_utf8 cifs evdev ext3 jbd mbcache ide_cd cdrom ide_disk ata_generic libata scsi_mod via_rhine mii floppy via82cxxx ide_core uhci_hcd usbcore thermal processor fan fuse apparmor commoncap
Oct 11 20:43:19 nec kernel: [29991.443438] CPU: 0
Oct 11 20:43:19 nec kernel: [29991.443439] EIP: 0060:[page_remove_rmap+233/256] Tainted: P VLI
Oct 11 20:43:19 nec kernel: [29991.443441] EFLAGS: 00213282 (2.6.22-14-generic #1)
Oct 11 20:43:19 nec kernel: [29991.443452] EIP is at page_remove_rmap+0xe9/0x100
Oct 11 20:43:19 nec kernel: [29991.443457] eax: 0000004a ebx: c15d9c00 ecx: 00203046 edx: 00000000
Oct 11 20:43:19 nec kernel: [29991.443462] esi: dfe0b8f0 edi: b7d71000 ebp: dfeda380 esp: df941dc8
Oct 11 20:43:19 nec kernel: [29991.443466] ds: 007b es: 007b fs: 00d8 gs: 0000 ss: 0068
Oct 11 20:43:19 nec kernel: [29991.443471] Process Xorg (pid: 4493, ti=df940000 task=dfacc530 task.ti=df940000)
Oct 11 20:43:19 nec kernel: [29991.443475] Stack: c037ae8d effe4654 c15d9c00 ef1465c4 c016b5c2 c019e13c 2ece0025 3882d12b
Oct 11 20:43:19 nec kernel: [29991.443487] b7ea4fff 00000000 dfe0b8f0 df941e5c 001dff20 00000000 00000001 b7ea5000
Oct 11 20:43:19 nec kernel: [29991.443499] dfab9b7c c16092c0 0000a6df 00000000 00000000 ffffffef c15e28cc 00000000
Oct 11 20:43:19 nec kernel: [29991.443510] Call Trace:
Oct 11 20:43:19 nec kernel: [29991.443528] [unmap_vmas+770/1488] unmap_vmas+0x302/0x5d0
Oct 11 20:43:19 nec kernel: [29991.443535] [__mark_inode_dirty+92/400] __mark_inode_dirty+0x5c/0x190
Oct 11 20:43:19 nec kernel: [29991.443633] [exit_mmap+120/240] exit_mmap+0x78/0xf0
Oct 11 20:43:19 nec kernel: [29991.443667] [mmput+56/160] mmput+0x38/0xa0
Oct 11 20:43:19 nec kernel: [29991.443682] [do_exit+271/2064] do_exit+0x10f/0x810
Oct 11 20:43:19 nec kernel: [29991.443746] [do_group_exit+38/128] do_group_exit+0x26/0x80
Oct 11 20:43:19 nec kernel: [29991.443762] [get_signal_to_deliver+664/1040] get_signal_to_deliver+0x298/0x410
Oct 11 20:43:19 nec kernel: [29991.443789] [do_page_fault+0/1680] do_page_fault+0x0/0x690
Oct 11 20:43:19 nec kernel: [29991.443805] [do_notify_resume+147/1824] do_notify_resume+0x93/0x720
Oct 11 20:43:19 nec kernel: [29991.443877] [<f0ca8f17>] drm_vbl_send_signals+0x17/0xe0 [drm]
Oct 11 20:43:19 nec kernel: [29991.443926] [atomic_notifier_call_chain+23/32] atomic_notifier_call_chain+0x17/0x20
Oct 11 20:43:19 nec kernel: [29991.443940] [do_page_fault+1011/1680] do_page_fault+0x3f3/0x690
Oct 11 20:43:19 nec kernel: [29991.443950] [handle_IRQ_event+48/96] handle_IRQ_event+0x30/0x60
Oct 11 20:43:19 nec kernel: [29991.443963] [enable_8259A_irq+13/80] enable_8259A_irq+0xd/0x50
Oct 11 20:43:19 nec kernel: [29991.444011] [do_page_fault+0/1680] do_page_fault+0x0/0x690
Oct 11 20:43:19 nec kernel: [29991.444021] [work_notifysig+19/37] work_notifysig+0x13/0x25
Oct 11 20:43:19 nec kernel: [29991.444088] =======================
Oct 11 20:43:19 nec kernel: [29991.444091] Code: c0 74 0d 8b 50 08 b8 88 9e 37 c0 e8 12 ad fd ff 8b 46 48 85 c0 74 14 8b 40 10 85 c0 74 0d 8b 50 2c b8 a8 9e 37 c0 e8 f7 ac fd ff <0f> 0b eb fe 8b 53 0c eb 95 8d b4 26 00 00 00 00 8d bc 27 00 00
Oct 11 20:43:19 nec kernel: [29991.444152] EIP: [page_remove_rmap+233/256] page_remove_rmap+0xe9/0x100 SS:ESP 0068:df941dc8
Oct 11 20:43:19 nec kernel: [29991.444165] Fixing recursive fault but reboot is needed!
Oct 11 20:43:19 nec kernel: [29991.444183] BUG: scheduling while atomic: Xorg/0x00000001/4493
Oct 11 20:43:19 nec kernel: [29991.444191] [schedule+1243/2192] schedule+0x4db/0x890
Oct 11 20:43:19 nec kernel: [29991.444218] [__slab_free+273/672] __slab_free+0x111/0x2a0
Oct 11 20:43:19 nec kernel: [29991.444260] [cfq_free_io_context+41/160] cfq_free_io_context+0x29/0xa0
Oct 11 20:43:19 nec kernel: [29991.444301] [do_exit+1896/2064] do_exit+0x768/0x810
Oct 11 20:43:19 nec kernel: [29991.444361] [die+607/608] die+0x25f/0x260
Oct 11 20:43:19 nec kernel: [29991.444388] [do_invalid_op+0/144] do_invalid_op+0x0/0x90
Oct 11 20:43:19 nec kernel: [29991.444397] [do_invalid_op+129/144] do_invalid_op+0x81/0x90
Oct 11 20:43:19 nec kernel: [29991.444427] [page_remove_rmap+233/256] page_remove_rmap+0xe9/0x100
Oct 11 20:43:19 nec kernel: [29991.444438] [__call_console_drivers+83/96] __call_console_drivers+0x53/0x60
Oct 11 20:43:19 nec kernel: [29991.444458] [release_console_sem+455/496] release_console_sem+0x1c7/0x1f0
Oct 11 20:43:19 nec kernel: [29991.444542] [error_code+114/128] error_code+0x72/0x80
Oct 11 20:43:19 nec kernel: [29991.444584] [page_remove_rmap+233/256] page_remove_rmap+0xe9/0x100
Oct 11 20:43:19 nec kernel: [29991.444611] [unmap_vmas+770/1488] unmap_vmas+0x302/0x5d0
Oct 11 20:43:19 nec kernel: [29991.444618] [__mark_inode_dirty+92/400] __mark_inode_dirty+0x5c/0x190
Oct 11 20:43:19 nec kernel: [29991.444711] [exit_mmap+120/240] exit_mmap+0x78/0xf0
Oct 11 20:43:19 nec kernel: [29991.444745] [mmput+56/160] mmput+0x38/0xa0
Oct 11 20:43:19 nec kernel: [29991.444757] [do_exit+271/2064] do_exit+0x10f/0x810
Oct 11 20:43:19 nec kernel: [29991.444817] [do_group_exit+38/128] do_group_exit+0x26/0x80
Oct 11 20:43:19 nec kernel: [29991.444834] [get_signal_to_deliver+664/1040] get_signal_to_deliver+0x298/0x410
Oct 11 20:43:19 nec kernel: [29991.444859] [do_page_fault+0/1680] do_page_fault+0x0/0x690
Oct 11 20:43:19 nec kernel: [29991.444870] [do_notify_resume+147/1824] do_notify_resume+0x93/0x720
Oct 11 20:43:19 nec kernel: [29991.444940] [<f0ca8f17>] drm_vbl_send_signals+0x17/0xe0 [drm]
Oct 11 20:43:19 nec kernel: [29991.444975] [atomic_notifier_call_chain+23/32] atomic_notifier_call_chain+0x17/0x20
Oct 11 20:43:19 nec kernel: [29991.444989] [do_page_fault+1011/1680] do_page_fault+0x3f3/0x690
Oct 11 20:43:19 nec kernel: [29991.444999] [handle_IRQ_event+48/96] handle_IRQ_event+0x30/0x60
Oct 11 20:43:19 nec kernel: [29991.445013] [enable_8259A_irq+13/80] enable_8259A_irq+0xd/0x50
Oct 11 20:43:19 nec kernel: [29991.445060] [do_page_fault+0/1680] do_page_fault+0x0/0x690
Oct 11 20:43:19 nec kernel: [29991.445070] [work_notifysig+19/37] work_notifysig+0x13/0x25
Oct 11 20:43:19 nec kernel: [29991.445136] =======================
Oct 11 20:45:37 nec syslogd 1.4.1#21ubuntu3: restart.
Oct 11 20:45:37 nec kernel: Inspecting /boot/System.map-2.6.22-14-generic
Oct 11 20:45:38 nec kernel: Loaded 25445 symbols from /boot/System.map-2.6.22-14-generic.
Oct 11 20:45:38 nec kernel: Symbols match kernel version 2.6.22.
Oct 11 20:45:38 nec kernel: No module symbols loaded - kernel modules not enabled.
Oct 11 20:45:38 nec kernel: [ 0.000000] Linux version 2.6.22-14-generic (buildd@vernadsky) (gcc version 4.1.3 20070929 (prerelease) (Ubuntu 4.1.2-16ubuntu2)) #1 SMP Wed Oct 10 06:00:47 GMT 2007 (Ubuntu 2.6.22-14.43-generic)