Re: panic and solid lockup on amd64

[mlh%goathill.org@localhost (MLH)]

oskar wrote:

> i just experienced some problems with a kernel from sources 10 hours old.
> transcript from ilo console:
>
> fatal double fault in supervisor mode
> rap type 13 code 0 rip 0xffffffff81ebeb39 cs 0x8 rflags 0x10286 cr2 0xffffa8892e56ed88 ilevel 0 rsp 0xffffa8892e56ed90
> curlwp 0xfffe0bd79123c00pid 0.3733 lowest kstack 0xffffa8892e56d2c0
> panix: double fault
> cpu0: begin traceback#
> vpanix() at netbsd:vpanic+0x178
> snprintf() at netbsd:snprintf
> trap() at netbsd:trap

I just had one but was from Mar 30 sources. I wasn't at the console
when it happened and it rebooted so don't know what exactly trigggered
it.

Apr  4 14:29:59 tiamat /netbsd: [ 98536.4939752] uvm_fault(0xffffffff81750920, 0x0, 1) -> e
Apr  4 14:29:59 tiamat /netbsd: [ 98536.4939752] fatal page fault in supervisor mode
Apr  4 14:29:59 tiamat /netbsd: [ 98536.4939752] trap type 6 code 0 rip 0xffffffff8049df5c cs 0x8 rflags 0x13246 cr2 0x8 ilevel 0 rsp 0xffff980077b3eb10
Apr  4 14:29:59 tiamat /netbsd: [ 98536.4939752] curlwp 0xffff94d086655940 pid 0.49 lowest kstack 0xffff980077b3b2c0
Apr  4 14:29:59 tiamat /netbsd: [ 98536.4939752] panic: trap
Apr  4 14:29:59 tiamat /netbsd: [ 98536.4939752] cpu1: Begin traceback...
Apr  4 14:29:59 tiamat /netbsd: [ 98536.4939752] vpanic() at netbsd:vpanic+0x178
Apr  4 14:29:59 tiamat /netbsd: [ 98536.4939752] snprintf() at netbsd:snprintf
Apr  4 14:29:59 tiamat /netbsd: [ 98536.4939752] startlwp() at netbsd:startlwp
Apr  4 14:29:59 tiamat /netbsd: [ 98536.4939752] alltraps() at netbsd:alltraps+0xc3
Apr  4 14:29:59 tiamat /netbsd: [ 98536.4939752] usbd_create_xfer() at netbsd:usbd_create_xfer+0x241
Apr  4 14:29:59 tiamat /netbsd: [ 98536.4939752] umass_attach() at netbsd:umass_attach+0x950
Apr  4 14:29:59 tiamat /netbsd: [ 98536.4939752] config_attach_loc() at netbsd:config_attach_loc+0x1a8
Apr  4 14:29:59 tiamat /netbsd: [ 98536.4939752] config_found_sm_loc() at netbsd:config_found_sm_loc+0x4d
Apr  4 14:29:59 tiamat /netbsd: [ 98536.4939752] usbd_attachinterfaces() at netbsd:usbd_attachinterfaces+0x1c5
Apr  4 14:29:59 tiamat /netbsd: [ 98536.4939752] usbd_probe_and_attach() at netbsd:usbd_probe_and_attach+0x9b
Apr  4 14:29:59 tiamat /netbsd: [ 98536.5039681] usbd_new_device() at netbsd:usbd_new_device+0x4c1
Apr  4 14:29:59 tiamat /netbsd: [ 98536.5039681] uhub_explore() at netbsd:uhub_explore+0x2f2
Apr  4 14:29:59 tiamat /netbsd: [ 98536.5039681] uhub_explore() at netbsd:uhub_explore+0xa1
Apr  4 14:29:59 tiamat /netbsd: [ 98536.5039681] uhub_explore() at netbsd:uhub_explore+0xa1
Apr  4 14:29:59 tiamat /netbsd: [ 98536.5039681] usb_discover.isra.2() at netbsd:usb_discover.isra.2+0xdf
Apr  4 14:29:59 tiamat /netbsd: [ 98536.5039681] usb_event_thread() at netbsd:usb_event_thread+0x77
Apr  4 14:29:59 tiamat /netbsd: [ 98536.5039681] cpu1: End traceback...
Apr  4 14:29:59 tiamat /netbsd: 
Apr  4 14:29:59 tiamat /netbsd: [ 98536.5039681] dumping to dev 168,4 (offset=1645335, size=1044333):