Hi all, Today I have hit the following general protection fault when removing module cx8800: Feb 15 18:30:09 hyperion kernel: cx88/2: unregistering cx8802 driver, type: dvb access: shared Feb 15 18:30:09 hyperion kernel: cx88[0]/2: subsystem: 107d:665f, board: WinFast DTV1000-T [card=35] Feb 15 18:30:09 hyperion kernel: cx88-mpeg driver manager 0000:02:04.2: PCI INT A disabled Feb 15 18:30:09 hyperion kernel: cx8800 0000:02:04.0: PCI INT A disabled Feb 15 18:30:09 hyperion kernel: general protection fault: 0000 [#1] Feb 15 18:30:09 hyperion kernel: last sysfs file: /sys/devices/pnp0/00:08/i2c-adapter/i2c-3/3-004c/temp2_crit_alarm Feb 15 18:30:09 hyperion kernel: CPU 0 Feb 15 18:30:09 hyperion kernel: Modules linked in: lm90 w83627ehf hwmon_vid i2c_parport isofs ip6t_LOG xt_tcpudp xt_pkttype ipt_LOG xt_limit binfmt_misc snd_pcm_oss snd_mixer_oss snd_seq snd_seq_device nfs lockd sunrpc radeon drm nf_conntrack_ipv6 ip6t_REJECT xt_NOTRACK ipt_REJECT xt_state iptable_raw iptable_filter ip6table_mangle nf_conntrack_netbios_ns nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 ip_tables ip6table_filter ip6_tables x_tables ipv6 nls_iso8859_1 nls_cp437 vfat fuse loop dm_mod dvb_pll cx22702 cx88_vp3054_i2c zr36060 cx88xx snd_intel8x0 ir_common snd_ac97_codec saa7110 snd_pcsp tveeprom ac97_bus zr36067 videobuf_dvb i2c_algo_bit compat_ioctl32 dvb_core snd_pcm snd_timer v4l2_common videocodec parport_pc parport btcx_risc iTCO_wdt snd videobuf_dma_sg 8139too soundcore videodev videobuf_core v4l1_compat mii i2c_i801 snd_page_alloc sr_mod cdrom intel_agp button sg sd_mod ehci_hcd uhci_hcd usbcore edd ext3 mbcache jbd fan ide_pci_generic piix ide_core ata_generic ata_piix libata thermal processor thermal_sys hwmon [last unloaded: cx8800] Feb 15 18:30:09 hyperion kernel: Pid: 5, comm: events/0 Not tainted 2.6.28.5 #5 Feb 15 18:30:09 hyperion kernel: RIP: 0010:[<ffffffffa0256c18>] [<ffffffffa0256c18>] cx88_ir_work+0x32/0x236 [cx88xx] Feb 15 18:30:09 hyperion kernel: RSP: 0000:ffff88003f86be20 EFLAGS: 00010202 Feb 15 18:30:09 hyperion kernel: RAX: 0000000000350010 RBX: ffff88003e1c0ec8 RCX: 0000000000000001 Feb 15 18:30:09 hyperion kernel: RDX: ffffffff80666ee0 RSI: ffffffff809fc750 RDI: ffff88003e1c0ec0 Feb 15 18:30:09 hyperion kernel: RBP: ffff88003f86be50 R08: 0000000000000001 R09: ffffffbff9b00198 Feb 15 18:30:09 hyperion kernel: R10: 0000000000000080 R11: 0000000000000001 R12: ffff88003e1c0ec0 Feb 15 18:30:09 hyperion kernel: R13: ffff88003e1c0c00 R14: 2f4065766f6d6572 R15: ffff88003f8201f0 Feb 15 18:30:09 hyperion kernel: FS: 0000000000000000(0000) GS:ffffffff805f3020(0000) knlGS:0000000000000000 Feb 15 18:30:09 hyperion kernel: CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b Feb 15 18:30:09 hyperion kernel: CR2: 00000000004042e0 CR3: 000000003ee63000 CR4: 00000000000006e0 Feb 15 18:30:09 hyperion kernel: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Feb 15 18:30:09 hyperion kernel: DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Feb 15 18:30:10 hyperion kernel: Process events/0 (pid: 5, threadinfo ffff88003f86a000, task ffff88003f845140) Feb 15 18:30:10 hyperion kernel: Stack: Feb 15 18:30:10 hyperion kernel: ffff88003f86be50 ffff88003e1c0ec8 ffff88003e1c0ec0 ffff88003f8201c0 Feb 15 18:30:10 hyperion kernel: ffffffffa0256be6 ffff88003f8201f0 ffff88003f86bec0 ffffffff802426b0 Feb 15 18:30:10 hyperion kernel: ffffffff8024268a ffffffff8042a910 ffffffffa0264444 0000000000000000 Feb 15 18:30:10 hyperion kernel: Call Trace: Feb 15 18:30:10 hyperion kernel: [<ffffffffa0256be6>] ? cx88_ir_work+0x0/0x236 [cx88xx] Feb 15 18:30:10 hyperion kernel: [<ffffffff802426b0>] run_workqueue+0xee/0x21f Feb 15 18:30:10 hyperion kernel: [<ffffffff8024268a>] ? run_workqueue+0xc8/0x21f Feb 15 18:30:10 hyperion kernel: [<ffffffff8042a910>] ? thread_return+0x30/0x1cd Feb 15 18:30:10 hyperion kernel: [<ffffffff80242c7e>] worker_thread+0xa6/0x111 Feb 15 18:30:10 hyperion kernel: [<ffffffff802465b1>] ? autoremove_wake_function+0x0/0x3b Feb 15 18:30:10 hyperion kernel: [<ffffffff80242bd8>] ? worker_thread+0x0/0x111 Feb 15 18:30:10 hyperion kernel: [<ffffffff80246306>] kthread+0x49/0x7b Feb 15 18:30:10 hyperion kernel: [<ffffffff8020c019>] child_rip+0xa/0x11 Feb 15 18:30:10 hyperion kernel: [<ffffffff8020bb34>] ? restore_args+0x0/0x30 Feb 15 18:30:10 hyperion kernel: [<ffffffff802462bd>] ? kthread+0x0/0x7b Feb 15 18:30:10 hyperion kernel: [<ffffffff8020c00f>] ? child_rip+0x0/0x11 Feb 15 18:30:10 hyperion kernel: Code: 56 41 55 41 54 53 48 83 ec 08 49 89 fc 4c 8d af 40 fd ff ff 4c 8b b7 40 fd ff ff 41 8b 85 48 03 00 00 c1 e8 02 89 c0 48 c1 e0 02 <49> 03 46 40 8b 18 41 8b 86 10 0a 00 00 83 f8 23 0f 84 fc 00 00 Feb 15 18:30:10 hyperion kernel: RIP [<ffffffffa0256c18>] cx88_ir_work+0x32/0x236 [cx88xx] Feb 15 18:30:10 hyperion kernel: RSP <ffff88003f86be20> Feb 15 18:30:10 hyperion kernel: ---[ end trace 45f7ffdbf475eafd ]--- Feb 15 18:30:10 hyperion kernel: pci 0000:02:01.0: PCI INT A disabled This was with kernel 2.6.28.5 on x86-64. I then hit it a second time using Hans Verkuil's v4l-dvb-zoran tree. In both case the keyboard started acting weirdly, first time it didn't respond to any key, second time it was like the return key was stuck. Both time I was able to reboot the machine with some insistence (SysRq or remote logging, killing X and reboot.) It doesn't happen on each rmmod cx8800, but as I managed to reproduce it once, I guess I should be able to reproduce it again if needed. Please let me know if you need more information or want me to test something. -- Jean Delvare -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
