On 21/03/07 at 11:07 -0700, Andrew Morton wrote: > On Wed, 21 Mar 2007 18:56:24 +0100 > Lucas Nussbaum <lucas@xxxxxxxxxxxxxxxxxx> wrote: > > > On 21/03/07 at 08:41 -0800, Andrew Morton wrote: > > > On Wed, 21 Mar 2007 07:18:45 -0700 bugme-daemon@xxxxxxxxxxxxxxxxxxx wrote: > > > > > > > http://bugzilla.kernel.org/show_bug.cgi?id=8249 > > > > > > > > Summary: NMI watchdog detected LOCKUP when plugging USB devices > > > > with acpi=off > > > > Kernel Version: 2.6.21-rc4 > > > > Status: NEW > > > > Severity: high > > > > Owner: greg@xxxxxxxxx > > > > Submitter: lucas@xxxxxxxxxxxxxxxxxx > > > > > > > > > > > > Most recent kernel where this bug did *NOT* occur: none, as far as I know > > > > Problem Description: > > > > > > > > My kernel is running with acpi=off to workaround another bug. When I turn on my > > > > USB printer (a Canon PIXMA MP750), I get this on the serial console: > > > > > > > > usb 1-1: new full speed USB device using ohci_hcd and address 2 > > > > usb 1-1: configuration #1 chosen from 1 choice > > > > BUG: NMI Watchdog detected LOCKUP on CPU0, eip 00007db7, registers: > > > > Modules linked in: nfs nfsd exportfs lockd nfs_acl sunrpc ppdev lp ipv6 > > > > dm_snapshot dm_mirror dm_mod apm eeprom i2c_i801 snd_es1938 snd_opl3_lib > > > > snd_hwdep snd_mpu401_uart snd_pcm_oss snd_pcm snd_page_alloc snd_mixer_oss > > > > snd_seq_dummy snd_seq_oss bt878 snd_seq_midi snd_rawmidi snd_seq_midi_event > > > > tuner bttv snd_seq video_buf firmware_class snd_timer snd_seq_device ir_common > > > > compat_ioctl32 i2c_algo_bit snd btcx_risc tveeprom videodev v4l2_common > > > > v4l1_compat soundcore i2c_amd756 i2c_core nvidia_agp agpgart shpchp pci_hotplug > > > > parport_pc parport evdev analog rtc gameport pcspkr ext3 jbd mbcache ide_cd > > > > cdrom ide_disk generic amd74xx e100 mii ide_core ohci_hcd usbcore > > > > CPU: 0 > > > > EIP: 00b8:[<00007db7>] Not tainted VLI > > > > EFLAGS: 00000006 (2.6.21-rc4 #3) > > > > EIP is at 0x7db7 > > > > eax: 00000ac2 ebx: 00000001 ecx: 00000000 edx: 0000e42e > > > > esi: dfe2bf2e edi: 0000530a ebp: 00000000 esp: dfe2be66 > > > > ds: 0000 es: 0000 fs: 0000 gs: 0000 ss: 0068 > > > > Process hald (pid: 2198, ti=dfe2a000 task=dff94a70 task.ti=dfe2a000) > > > > Stack: c2fb0001 0060ef9e 00010000 530a0000 007b0000 007b0000 f7200000 5de0deb8 > > > > 0000eefd 00d80000 c0400000 0033c15e 02820000 00010000 00000000 00000000 > > > > bf2a0000 bf2edfe2 bf2cdfe2 0400dfe2 c5cb0000 bee0ef9e bedcdfe2 bed8dfe2 > > > > Call Trace: > > > > ======================= > > > > Code: Bad EIP value. > > > > > > > > I could also reproduce the same crash using two another USB peripherals (a > > > > remote controller and a mouse). > > > > > > > > Without acpi=off, it works fine. > > > > > > > > > > (Please respond via reply-to-all, not via bugzilla web forms) > > > > > > Are you able to get a cleaner kenrel trace than that? This one seems a bit > > > mangled. > > > > No. Initially, I didn't have debugging symbols compiled in, so I rebuilt > > the kernel in the hope that I would get something useful. But I got the > > same trace. > > > > > Please raise a buzilla entry against acpi for the "another bug", if you > > > haven't done so. > > > > It's http://bugzilla.kernel.org/show_bug.cgi?id=7937 (wake on lan > > doesn't work when acpi is enabled (works if disabled). > > > > > I assume this indicates a bug in USB (as well) but with this trace it is > > > hard to tell. > > > > How could I get a more useful output ? > > ugly. > > Have you tried it with the NMI watchdog disabled? The machine might just > lock up dead. Or it might do something useful&interesting, dunno. When booting with nmi_watchdog=0, it just locks up... -- | Lucas Nussbaum | lucas@xxxxxxxxxxxxxxxxxx http://www.lucas-nussbaum.net/ | | jabber: lucas@xxxxxxxxxxx GPG: 1024D/023B3F4F | - To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
