On Tue, Aug 5, 2008 at 9:29 PM, Andy Walls <[EMAIL PROTECTED]> wrote: > On Tue, 2008-08-05 at 21:04 -0400, Brandon Jenkins wrote: >> Hi All >> >> I am running kernel 2.6.26 on Ubuntu 8.04. Any thoughts? > > I ran into a similar Oops in the same function on 23 July. I had it at > a lower priority since no one had complained about it and it seems rare. > > I'll try and get to it before Saturday morning. If anyone wants to > submit a patch before then, I'll review it ASAP after receipt. > > Regards, > Andy > >> Thanks in advance >> >> Brandon >> >> [35037.080230] BUG: unable to handle kernel NULL pointer dereference >> at 0000000000000000 >> [35037.080258] IP: [<ffffffffa01e4180>] :cx18:cx18_queue_move_buf+0x0/0xa0 >> [35037.080284] PGD 21b9e9067 PUD 218c12067 PMD 0 >> [35037.080298] Oops: 0000 [1] PREEMPT SMP >> [35037.080311] CPU 1 >> [35037.080320] Modules linked in: binfmt_misc iptable_filter ip_tables >> x_tables xfs loop mxl5005s s5h1409 tuner_simple ipv6 tuner_types >> cs5345 tuner usbhid cx18 dvb_core hid compat_ioctl32 videodev >> v4l1_compat i2c_algo_bit cx2341x v4l2_common tveeprom psmouse i2c_core >> button ext3 jbd mbcache sd_mod ahci libata scsi_mod iTCO_wdt dock >> r8169 ehci_hcd uhci_hcd usbcore raid10 raid456 async_xor async_memcpy >> async_tx xor raid1 raid0 multipath linear md_mod dm_mirror dm_log >> dm_snapshot dm_mod thermal processor fan fuse >> [35037.080488] Pid: 15894, comm: java Not tainted 2.6.26-server-sagetv #1 >> [35037.080499] RIP: 0010:[<ffffffffa01e4180>] [<ffffffffa01e4180>] >> :cx18:cx18_queue_move_buf+0x0/0xa0 >> [35037.080521] RSP: 0018:ffff810217c4be50 EFLAGS: 00010046 >> [35037.080530] RAX: 00000000003d0000 RBX: 0000000000000000 RCX: >> 0000000000000001 >> [35037.080541] RDX: ffff81021d9a81f8 RSI: 0000000000000000 RDI: >> ffff81021d9a8188 >> [35037.080552] RBP: ffff81021d9a81f8 R08: 0000000000000000 R09: >> 000000000009d548 >> [35037.080563] R10: 000000000009d547 R11: 0000000000000002 R12: >> 0000000000000001 >> [35037.080574] R13: 0000000000020000 R14: 0000000000000000 R15: >> ffff81021d9a8188 >> [35037.080585] FS: 0000000000000000(0000) GS:ffff81021fc06580(0063) >> knlGS:00000000c9efbb90 >> [35037.080601] CS: 0010 DS: 002b ES: 002b CR0: 000000008005003b >> [35037.080611] CR2: 0000000000000000 CR3: 00000002179b8000 CR4: >> 00000000000006a0 >> [35037.080622] DR0: 0000000000000000 DR1: 0000000000000000 DR2: >> 0000000000000000 >> [35037.080633] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: >> 0000000000000400 >> [35037.080644] Process java (pid: 15894, threadinfo ffff810217c4a000, >> task ffff81020ad6c620) >> [35037.080659] Stack: ffffffffa01e42c2 00000000003d0000 >> ffff81021d9a81b0 0000000000000292 >> [35037.080682] 000000011d9a81f8 ffff8102003d0000 ffff81021d9a8188 >> ffff81021d9a8000 >> [35037.080703] ffff81021d9a8188 ffff81021d9a8128 ffff81021fd15600 >> 0000000000000000 >> [35037.080719] Call Trace: >> [35037.080736] [<ffffffffa01e42c2>] ? :cx18:cx18_queue_move+0xa2/0x160 >> [35037.080752] [<ffffffffa01e58e8>] ? :cx18:cx18_release_stream+0x78/0xc0 >> [35037.080767] [<ffffffffa01e5d86>] ? :cx18:cx18_v4l2_close+0xb6/0x150 >> [35037.080781] [<ffffffff802a88d1>] ? __fput+0xb1/0x1d0 >> [35037.080792] [<ffffffff802a5404>] ? filp_close+0x54/0x90 >> [35037.080803] [<ffffffff802a6c1f>] ? sys_close+0x9f/0x110 >> [35037.080815] [<ffffffff80226c02>] ? sysenter_do_call+0x1b/0x66 >> [35037.080826] [<ffffffff80315060>] ? dummy_file_free_security+0x0/0x10 >> [35037.080839] >> [35037.080845] >> [35037.080852] Code: 74 22 31 c9 0f 1f 80 00 00 00 00 48 89 c8 48 03 >> 47 28 8b 10 0f ca 89 10 8d 41 04 48 83 c1 04 39 47 30 77 e7 f3 c3 0f >> 1f 44 00 00 <4c> 8b 0e 49 89 d2 49 8b 41 08 49 8b 11 48 89 42 08 48 89 >> 10 49 >> [35037.080976] RIP [<ffffffffa01e4180>] :cx18:cx18_queue_move_buf+0x0/0xa0 >> [35037.080992] RSP <ffff810217c4be50> >> [35037.081000] CR2: 0000000000000000 >> [35037.081192] ---[ end trace 10100555b3a0d104 ]--- >> [35037.090147] note: java[15894] exited with preempt_count 1 >> >> -- >> video4linux-list mailing list >> Unsubscribe mailto:[EMAIL PROTECTED] >> https://www.redhat.com/mailman/listinfo/video4linux-list >> > > Here's another one. Is there something I could do to lessen the issue while a patch is being worked? Rebuild the kernel without preempting?
Thanks in advance, Brandon [37769.189579] cx18-0: Cannot find buffer 68 for stream encoder MPEG [37769.189579] cx18-0: Could not find buf 68 for stream encoder MPEG [37985.181190] BUG: unable to handle kernel NULL pointer dereference at 0000000000000000 [37985.181190] IP: [<ffffffffa01e2180>] :cx18:cx18_queue_move_buf+0x0/0xa0 [37985.181190] PGD 214969067 PUD 214884067 PMD 0 [37985.181190] Oops: 0000 [1] PREEMPT SMP [37985.181190] CPU 3 [37985.181190] Modules linked in: binfmt_misc iptable_filter ip_tables x_tables xfs loop mxl5005s ipv6 s5h1409 tuner_simple tuner_types cs5345 tuner usbhid cx18 dvb_core hid compat_ioctl32 videodev v4l1_compat i2c_algo_bit cx2341x v4l2_common tveeprom psmouse i2c_core button ext3 jbd mbcache sd_mod ahci iTCO_wdt libata r8169 scsi_mod dock ehci_hcd uhci_hcd usbcore raid10 raid456 async_xor async_memcpy async_tx xor raid1 raid0 multipath linear md_mod dm_mirror dm_log dm_snapshot dm_mod thermal processor fan fuse [37985.181190] Pid: 493, comm: java Not tainted 2.6.26-server-sagetv #1 [37985.181190] RIP: 0010:[<ffffffffa01e2180>] [<ffffffffa01e2180>] :cx18:cx18_queue_move_buf+0x0/0xa0 [37985.181190] RSP: 0018:ffff810197ec9e50 EFLAGS: 00010046 [37985.181190] RAX: 00000000000e0000 RBX: 0000000000000000 RCX: 0000000000000001 [37985.181190] RDX: ffff81021d0181f8 RSI: 0000000000000000 RDI: ffff81021d018188 [37985.181190] RBP: ffff81021d0181f8 R08: 0000000000000000 R09: 000000000004c308 [37985.181190] R10: 000000000004c307 R11: ffff810001025a70 R12: 0000000000000001 [37985.181190] R13: 0000000000310000 R14: 0000000000000000 R15: ffff81021d018188 [37985.181190] FS: 0000000000000000(0000) GS:ffff81021fc06980(0063) knlGS:00000000c74f2b90 [37985.181190] CS: 0010 DS: 002b ES: 002b CR0: 000000008005003b [37985.181190] CR2: 0000000000000000 CR3: 000000021405e000 CR4: 00000000000006a0 [37985.181190] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [37985.181190] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [37985.181190] Process java (pid: 493, threadinfo ffff810197ec8000, task ffff8101fe97dfa0) [37985.181190] Stack: ffffffffa01e22c2 ffff8100000e0000 ffff81021d0181b0 0000000000000292 [37985.181190] 000000011d0181f8 ffff8102000e0000 ffff81021d018188 ffff81021d018000 [37985.181190] ffff81021d018188 ffff81021d018128 ffff81021fc92300 0000000000000000 [37985.181190] Call Trace: [37985.181190] [<ffffffffa01e22c2>] ? :cx18:cx18_queue_move+0xa2/0x160 [37985.181190] [<ffffffffa01e38d8>] ? :cx18:cx18_release_stream+0x78/0xc0 [37985.181190] [<ffffffffa01e3d76>] ? :cx18:cx18_v4l2_close+0xb6/0x150 [37985.181190] [<ffffffff802a88d1>] ? __fput+0xb1/0x1d0 [37985.181190] [<ffffffff802a5404>] ? filp_close+0x54/0x90 [37985.181190] [<ffffffff802a6c1f>] ? sys_close+0x9f/0x110 [37985.181190] [<ffffffff80226c02>] ? sysenter_do_call+0x1b/0x66 [37985.181190] [37985.181190] [37985.181190] Code: 74 22 31 c9 0f 1f 80 00 00 00 00 48 89 c8 48 03 47 28 8b 10 0f ca 89 10 8d 41 04 48 83 c1 04 39 47 30 77 e7 f3 c3 0f 1f 44 00 00 <4c> 8b 0e 49 89 d2 49 8b 41 08 49 8b 11 48 89 42 08 48 89 10 49 [37985.181190] RIP [<ffffffffa01e2180>] :cx18:cx18_queue_move_buf+0x0/0xa0 [37985.181190] RSP <ffff810197ec9e50> [37985.181190] CR2: 0000000000000000 [37985.181190] ---[ end trace cbfa59d18c547596 ]--- _______________________________________________ ivtv-devel mailing list [email protected] http://ivtvdriver.org/mailman/listinfo/ivtv-devel
