On Mon, Mar 28, 2005 at 10:30:22PM +1200, Reuben Farrelly wrote: > Unable to handle kernel paging request at virtual address f3a6ce68 > printing eip: > c0244109 > *pde = 00000000 > Oops: 0000 [#1] > SMP DEBUG_PAGEALLOC > Modules linked in: hidp hci_usb sermouse nfsd exportfs md5 ipv6 lp > autofs4 eeprom lm85 i2c_sensor rfcomm l2cap bluetooth nfs lock > d sunrpc usb_storage pwc videodev dm_mod video button battery ac > ohci1394 ieee1394 uhci_hcd ehci_hcd parport_serial parport_pc parp > ort hw_random i2c_i801 i2c_core emu10k1_gp gameport e100 mii floppy ext3 > jbd ata_piix libata sd_mod scsi_mod > CPU: 0 > EIP: 0060:[<c0244109>] Not tainted VLI > EFLAGS: 00010286 (2.6.12-rc1-mm3) > EIP is at serport_ldisc_write_wakeup+0x9/0x20 > eax: f3a6cdf8 ebx: f73d7000 ecx: c038e374 edx: c0244100 > esi: f73d700c edi: f73d7000 ebp: c049e900 esp: f7568dc0 > ds: 007b es: 007b ss: 0068 > Process inputattach (pid: 2932, threadinfo=f7568000 task=f6993ac0) > Stack: c021bb08 00000286 f6c31000 c0245e4a f6c31018 f73d7000 f67c1e88 > cbff5c > 00000000 c021ceaa 00000000 00000000 00000000 c1e46000 c1e46000 > 00000000 > 00000000 c011b739 00000046 c1e46000 00000001 f2c00000 f2c00000 > c011b8b4 > Call Trace: > ^M [<c021bb08>] tty_wakeup+0x48/0x70 > ^M [<c0245e4a>] uart_close+0xca/0x1e0
Looks like something in the input layer went bang. The code in serport_ldisc_write_wakeup is: 0: 8b 80 a8 09 00 00 mov 0x9a8(%eax),%eax 6: 8b 40 14 mov 0x14(%eax),%eax 9: 8b 50 70 mov 0x70(%eax),%edx <==== c: 85 d2 test %edx,%edx e: 74 09 je 0x19 and the marked line exploded on you. The above instructions correspond with: 0: struct serport *sp = (struct serport *) tty->disc_data; 6: serio_drv_write_wakeup(sp->serio); 9: if (serio->drv So, "serio" was this strange 0xf3a6cdf8 value. But why? One for the input people I think. > ^M [<c021ceaa>] release_dev+0x14a/0x750 > ^M [<c011b739>] change_page_attr+0x29/0x60 > ^M [<c011b8b4>] kernel_map_pages+0x84/0xa0 > ^M [<c014cbca>] store_stackinfo+0x5a/0x90 > ^M [<c01664c8>] __fput+0x108/0x180 > ^M [<c018b59b>] inotify_inode_queue_event+0x2b/0x40 > ^M [<c021d97f>] tty_release+0xf/0x20 > ^M [<c016644a>] __fput+0x8a/0x180 > ^M [<c0164d7b>] filp_close+0x4b/0x70 > ^M [<c0125254>] put_files_struct+0x74/0x100 > ^M [<c012610c>] do_exit+0x11c/0x420 > ^M [<c012647d>] do_group_exit+0x2d/0xa0 > ^M [<c012f74c>] get_signal_to_deliver+0x20c/0x310 > ^M [<c0103deb>] do_signal+0x5b/0x140 > ^M [<c011ea89>] __wake_up+0x29/0x40 > ^M [<c021b60c>] tty_ldisc_deref+0x3c/0x70 > ^M [<c021c267>] tty_read+0xc7/0x130 > ^M [<c0243fb0>] serport_ldisc_read+0x0/0x100 > ^M [<c016ecd3>] sys_fstat64+0x23/0x30 > ^M [<c021c1a0>] tty_read+0x0/0x130 > ^M [<c0165547>] vfs_read+0x97/0x140 > ^M [<c016585c>] sys_read+0x3c/0x70 > ^M [<c0103efa>] do_notify_resume+0x2a/0x40 > ^M [<c01040be>] work_notifysig+0x13/0x25 > ^MCode: e8 0f b6 c5 88 4b 4b 31 d2 c1 e9 10 88 43 4a 88 4b 49 89 d0 5b > c3 8d b6 00 00 00 00 8d bf 00 00 00 00 8b 80 a8 09 00 00 8b > 40 14 <8b> 50 70 85 d2 74 09 8b 52 10 85 d2 74 02 ff d2 c3 90 90 90 90 > ^M BUG: atomic counter underflow at: > ^M [<c0126386>] do_exit+0x396/0x420 > ^M [<c01059f6>] die+0x166/0x170 > ^M [<c011a7a3>] do_page_fault+0x1f3/0x6a1 > ^M [<c0244109>] serport_ldisc_write_wakeup+0x9/0x20 > ^M [<c011b36c>] __change_page_attr+0x4c/0x3f0 > ^M [<c011a5b0>] do_page_fault+0x0/0x6a1 > ^M [<c010522f>] error_code+0x4f/0x60 > ^M [<c0244100>] serport_ldisc_write_wakeup+0x0/0x20 > ^M [<c0244109>] serport_ldisc_write_wakeup+0x9/0x20 > ^M [<c021bb08>] tty_wakeup+0x48/0x70 > ^M [<c0245e4a>] uart_close+0xca/0x1e0 > ^M [<c021ceaa>] release_dev+0x14a/0x750 > ^M [<c011b739>] change_page_attr+0x29/0x60 > ^M [<c011b8b4>] kernel_map_pages+0x84/0xa0 > ^M [<c014cbca>] store_stackinfo+0x5a/0x90 > ^M [<c01664c8>] __fput+0x108/0x180 > ^M [<c018b59b>] inotify_inode_queue_event+0x2b/0x40 > ^M [<c021d97f>] tty_release+0xf/0x20 > ^M [<c016644a>] __fput+0x8a/0x180 > ^M [<c0164d7b>] filp_close+0x4b/0x70 > ^M [<c0125254>] put_files_struct+0x74/0x100 > ^M [<c012610c>] do_exit+0x11c/0x420 > ^M [<c012647d>] do_group_exit+0x2d/0xa0 > ^M [<c012f74c>] get_signal_to_deliver+0x20c/0x310 > ^M [<c0103deb>] do_signal+0x5b/0x140 > ^M [<c011ea89>] __wake_up+0x29/0x40 > ^M [<c021b60c>] tty_ldisc_deref+0x3c/0x70 > ^M [<c021c267>] tty_read+0xc7/0x130 > ^M [<c0243fb0>] serport_ldisc_read+0x0/0x100 > ^M [<c016ecd3>] sys_fstat64+0x23/0x30 > ^M [<c021c1a0>] tty_read+0x0/0x130 > ^M [<c0165547>] vfs_read+0x97/0x140 > ^M [<c016585c>] sys_read+0x3c/0x70 > ^M [<c0103efa>] do_notify_resume+0x2a/0x40 > ^M [<c01040be>] work_notifysig+0x13/0x25 -- Russell King Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/ maintainer of: 2.6 Serial core - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
