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[Bug 768893] Re: System crashes when cdemu is present

To: ubuntu-x-swat@xxxxxxxxxxxxxxxxxxx
From: Harald Eiermann <768893@xxxxxxxxxxxxxxxxxx>
Date: Fri, 29 Apr 2011 22:32:42 -0000
Reply-to: Bug 768893 <768893@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
Same problem here. Alas, it was sufficient to prevent vhba.ko kernel module from loading.
I got a kernel oops as follows:

Apr 29 22:24:09 vera kernel: [  306.460129] BUG: unable to handle kernel paging request at 0000000000040004
Apr 29 22:24:09 vera kernel: [  306.460135] IP: [<ffffffffa00e6bfe>] vhba_ctl_read+0x1fe/0x2e0 [vhba]
Apr 29 22:24:09 vera kernel: [  306.460143] PGD 10ec04067 PUD 10ed97067 PMD 0 
Apr 29 22:24:09 vera kernel: [  306.460146] Oops: 0000 [#1] SMP 
Apr 29 22:24:09 vera kernel: [  306.460149] last sysfs file: /sys/devices/pci0000:00/0000:00:1b.0/sound/card0/uevent
Apr 29 22:24:09 vera kernel: [  306.460151] CPU 1 
Apr 29 22:24:09 vera kernel: [  306.460152] Modules linked in: vboxnetadp vboxnetflt vboxdrv snd_hrtimer binfmt_misc kvm_intel kvm parport_pc ppdev lp parport dm_crypt vesafb usblp snd_hda_codec_hdmi snd_hda_codec_realtek ir_lirc_codec snd_hda_intel snd_hda_codec ir_sony_decoder ir_jvc_decoder snd_hwdep rc_rc6_mce ir_rc6_decoder ir_rc5_decoder snd_pcm ir_nec_decoder mceusb rc_core snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq fglrx(P) saa7164 dvb_core snd_timer snd_seq_device v4l2_common asus_atk0110 videodev v4l2_compat_ioctl32 tveeprom snd vhba lirc_dev soundcore snd_page_alloc radeonfb fb_ddc i2c_algo_bit dm_raid45 xor usbhid usb_storage pata_marvell hid uas atl1e ahci floppy libahci ramzswap xvmalloc
Apr 29 22:24:09 vera kernel: [  306.460188] 
Apr 29 22:24:09 vera kernel: [  306.460191] Pid: 2596, comm: cdemud Tainted: P            2.6.38-8-generic #42-Ubuntu System manufacturer P5Q/P5Q
Apr 29 22:24:09 vera kernel: [  306.460195] RIP: 0010:[<ffffffffa00e6bfe>]  [<ffffffffa00e6bfe>] vhba_ctl_read+0x1fe/0x2e0 [vhba]
Apr 29 22:24:09 vera kernel: [  306.460199] RSP: 0018:ffff880110a53e38  EFLAGS: 00010202
Apr 29 22:24:09 vera kernel: [  306.460201] RAX: 0000000000040004 RBX: ffff8801227f8650 RCX: ffff8801276ddb80
Apr 29 22:24:09 vera kernel: [  306.460202] RDX: ffff8801203aa408 RSI: 0000000000000286 RDI: 00Apr 29 22:24:09 vera kernel: [  306.460129] BUG: unable to handle kernel paging request at 0000000000040004
Apr 29 22:24:09 vera kernel: [  306.460135] IP: [<ffffffffa00e6bfe>] vhba_ctl_read+0x1fe/0x2e0 [vhba]
Apr 29 22:24:09 vera kernel: [  306.460143] PGD 10ec04067 PUD 10ed97067 PMD 0 
Apr 29 22:24:09 vera kernel: [  306.460146] Oops: 0000 [#1] SMP 
Apr 29 22:24:09 vera kernel: [  306.460149] last sysfs file: /sys/devices/pci0000:00/0000:00:1b.0/sound/card0/uevent
Apr 29 22:24:09 vera kernel: [  306.460151] CPU 1 
Apr 29 22:24:09 vera kernel: [  306.460152] Modules linked in: vboxnetadp vboxnetflt vboxdrv snd_hrtimer binfmt_misc kvm_intel kvm parport_pc ppdev lp parport dm_crypt vesafb usblp snd_hda_codec_hdmi snd_hda_codec_realtek ir_lirc_codec snd_hda_intel snd_hda_codec ir_sony_decoder ir_jvc_decoder snd_hwdep rc_rc6_mce ir_rc6_decoder ir_rc5_decoder snd_pcm ir_nec_decoder mceusb rc_core snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq fglrx(P) saa7164 dvb_core snd_timer snd_seq_device v4l2_common asus_atk0110 videodev v4l2_compat_ioctl32 tveeprom snd vhba lirc_dev soundcore snd_page_alloc radeonfb fb_ddc i2c_algo_bit dm_raid45 xor usbhid usb_storage pata_marvell hid uas atl1e ahci floppy libahci ramzswap xvmalloc
Apr 29 22:24:09 vera kernel: [  306.460188] 
Apr 29 22:24:09 vera kernel: [  306.460191] Pid: 2596, comm: cdemud Tainted: P            2.6.38-8-generic #42-Ubuntu System manufacturer P5Q/P5Q
Apr 29 22:24:09 vera kernel: [  306.460195] RIP: 0010:[<ffffffffa00e6bfe>]  [<ffffffffa00e6bfe>] vhba_ctl_read+0x1fe/0x2e0 [vhba]
Apr 29 22:24:09 vera kernel: [  306.460199] RSP: 0018:ffff880110a53e38  EFLAGS: 00010202
Apr 29 22:24:09 vera kernel: [  306.460201] RAX: 0000000000040004 RBX: ffff8801227f8650 RCX: ffff8801276ddb80
Apr 29 22:24:09 vera kernel: [  306.460202] RDX: ffff8801203aa408 RSI: 0000000000000286 RDI: 0000000000000286
Apr 29 22:24:09 vera kernel: [  306.460204] RBP: ffff880110a53ef8 R08: 0000000000000000 R09: 0000000000000000
Apr 29 22:24:09 vera kernel: [  306.460206] R10: 00007fc667c2c790 R11: 0000000000000293 R12: ffff8801203aa404
Apr 29 22:24:09 vera kernel: [  306.460208] R13: 0000000000000020 R14: ffff8801227f8000 R15: ffff8801203aa418
Apr 29 22:24:09 vera kernel: [  306.460210] FS:  00007fc667c4d700(0000) GS:ffff8800cfc80000(0000) knlGS:0000000000000000
Apr 29 22:24:09 vera kernel: [  306.460212] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Apr 29 22:24:09 vera kernel: [  306.460214] CR2: 0000000000040004 CR3: 000000010cbf4000 CR4: 00000000000006e0
Apr 29 22:24:09 vera kernel: [  306.460216] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Apr 29 22:24:09 vera kernel: [  306.460218] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Apr 29 22:24:09 vera kernel: [  306.460220] Process cdemud (pid: 2596, threadinfo ffff880110a52000, task ffff8801276ddb80)
Apr 29 22:24:09 vera kernel: [  306.460221] Stack:
Apr 29 22:24:09 vera kernel: [  306.460222]  ffff8801226f2d70 00020000815c6af8 ffff880110a53f48 00007fc667c2cad0
Apr 29 22:24:09 vera kernel: [  306.460226]  0000000000020200 0000000000000286 0000000000000000 ffff8801276ddb80
Apr 29 22:24:09 vera kernel: [  306.460229]  ffffffff81087f30 ffff880110a53e80 ffff880110a53e80 0000000000eec870
Apr 29 22:24:09 vera kernel: [  306.460232] Call Trace:
Apr 29 22:24:09 vera kernel: [  306.460239]  [<ffffffff81087f30>] ? autoremove_wake_function+0x0/0x40
Apr 29 22:24:09 vera kernel: [  306.460244]  [<ffffffff81279c13>] ? security_file_permission+0x93/0xb0
Apr 29 22:24:09 vera kernel: [  306.460248]  [<ffffffff81164f73>] vfs_read+0xc3/0x180
Apr 29 22:24:09 vera kernel: [  306.460250]  [<ffffffff81165081>] sys_read+0x51/0x90
Apr 29 22:24:09 vera kernel: [  306.460254]  [<ffffffff8100c002>] system_call_fastpath+0x16/0x1b
Apr 29 22:24:09 vera kernel: [  306.460255] Code: 00 00 48 81 c4 98 00 00 00 5b 41 5c 41 5d 41 5e 41 5f c9 c3 49 8b 46 30 89 45 a0 49 8b 06 8b 80 84 00 00 00 89 45 a4 49 8b 46 50 <48> 8b 10 48 89 55 a8 48 8b 40 08 48 89 45 b0 41 0f b7 46 4a 88 
Apr 29 22:24:09 vera kernel: [  306.460281] RIP  [<ffffffffa00e6bfe>] vhba_ctl_read+0x1fe/0x2e0 [vhba]
Apr 29 22:24:09 vera kernel: [  306.460285]  RSP <ffff880110a53e38>
Apr 29 22:24:09 vera kernel: [  306.460286] CR2: 0000000000040004
Apr 29 22:24:09 vera kernel: [  306.460288] ---[ end trace 9d40a9bbb47d3639 ]---
00000000000286
Apr 29 22:24:09 vera kernel: [  306.460204] RBP: ffff880110a53ef8 R08: 0000000000000000 R09: 0000000000000000
Apr 29 22:24:09 vera kernel: [  306.460206] R10: 00007fc667c2c790 R11: 0000000000000293 R12: ffff8801203aa404
Apr 29 22:24:09 vera kernel: [  306.460208] R13: 0000000000000020 R14: ffff8801227f8000 R15: ffff8801203aa418
Apr 29 22:24:09 vera kernel: [  306.460210] FS:  00007fc667c4d700(0000) GS:ffff8800cfc80000(0000) knlGS:0000000000000000
Apr 29 22:24:09 vera kernel: [  306.460212] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Apr 29 22:24:09 vera kernel: [  306.460214] CR2: 0000000000040004 CR3: 000000010cbf4000 CR4: 00000000000006e0
Apr 29 22:24:09 vera kernel: [  306.460216] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Apr 29 22:24:09 vera kernel: [  306.460218] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Apr 29 22:24:09 vera kernel: [  306.460220] Process cdemud (pid: 2596, threadinfo ffff880110a52000, task ffff8801276ddb80)
Apr 29 22:24:09 vera kernel: [  306.460221] Stack:
Apr 29 22:24:09 vera kernel: [  306.460222]  ffff8801226f2d70 00020000815c6af8 ffff880110a53f48 00007fc667c2cad0
Apr 29 22:24:09 vera kernel: [  306.460226]  0000000000020200 0000000000000286 0000000000000000 ffff8801276ddb80
Apr 29 22:24:09 vera kernel: [  306.460229]  ffffffff81087f30 ffff880110a53e80 ffff880110a53e80 0000000000eec870
Apr 29 22:24:09 vera kernel: [  306.460232] Call Trace:
Apr 29 22:24:09 vera kernel: [  306.460239]  [<ffffffff81087f30>] ? autoremove_wake_function+0x0/0x40
Apr 29 22:24:09 vera kernel: [  306.460244]  [<ffffffff81279c13>] ? security_file_permission+0x93/0xb0
Apr 29 22:24:09 vera kernel: [  306.460248]  [<ffffffff81164f73>] vfs_read+0xc3/0x180
Apr 29 22:24:09 vera kernel: [  306.460250]  [<ffffffff81165081>] sys_read+0x51/0x90
Apr 29 22:24:09 vera kernel: [  306.460254]  [<ffffffff8100c002>] system_call_fastpath+0x16/0x1b
Apr 29 22:24:09 vera kernel: [  306.460255] Code: 00 00 48 81 c4 98 00 00 00 5b 41 5c 41 5d 41 5e 41 5f c9 c3 49 8b 46 30 89 45 a0 49 8b 06 8b 80 84 00 00 00 89 45 a4 49 8b 46 50 <48> 8b 10 48 89 55 a8 48 8b 40 08 48 89 45 b0 41 0f b7 46 4a 88 
Apr 29 22:24:09 vera kernel: [  306.460281] RIP  [<ffffffffa00e6bfe>] vhba_ctl_read+0x1fe/0x2e0 [vhba]
Apr 29 22:24:09 vera kernel: [  306.460285]  RSP <ffff880110a53e38>
Apr 29 22:24:09 vera kernel: [  306.460286] CR2: 0000000000040004
Apr 29 22:24:09 vera kernel: [  306.460288] ---[ end trace 9d40a9bbb47d3639 ]---

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https://bugs.launchpad.net/bugs/768893

Title:
  System crashes when cdemu is present
References

[Bug 768893] [NEW] System crashes when cdemu is present
From: leo, 2011-04-22