Re: amd64 HEAD 03/05 dom0 crash

["Chris Brookes" <cbrookes%gmail.com@localhost>]

This is a dom0 crash. Forgot that (likely) crucial info.

On 22/03/2008, Chris Brookes <cbrookes%gmail.com@localhost> wrote:
> I'm using HEAD from 03/05  on amd64 with a self compiled kernel. As I
>  recall the only thing I have changed in my kernel config is a
>  specified vnd amount. The kernel source is from 03/05 with a patch
>  applied to fix vlan tagging issues in re(4).  This is the second time
>  this type of crash has happened. Unfortunately I wasn't able to
>  capture the console output last time.
>
>  Mutex error: mutex_vector_exit: exiting unheld spin mutex
>
>  lock address : 0xffffffff80af8f40
>  current cpu  :                  0
>  current lwp  : 0xffffa000121e92e0
>  owner field  : 0x0000000000000600 wait/spin:                0/1
>
>  panic: lock error
>  Stopped in pid 0.5 (system) at  netbsd:breakpoint+0x5:  leave
>  breakpoint() at netbsd:breakpoint+0x5
>  panic() at netbsd:panic+0x25b
>  lockdebug_abort() at netbsd:lockdebug_abort+0x42
>  mutex_vector_exit() at netbsd:mutex_vector_exit+0xd7
>  callout_softclock() at netbsd:callout_softclock+0x263
>  softint_thread() at netbsd:softint_thread+0x89
>  ds          0x6
>  es          0x278c
>  fs          0xd54e
>  gs          0x285f
>  rdi         0
>  rsi         0x1
>  rbp         0xffffa00012b5caa0
>  rbx         0xffffa00012b5cab0
>  rdx         0
>  rcx         0
>  rax         0x1
>  r8          0xffffffff80a593e0  cpu_info_primary
>  r9          0x1
>  r10         0xffffa00012b5c9c0
>  r11         0xffffffff804bc5f0  xenconscn_putc
>  r12         0x100
>  r13         0xffffffff807ed54e  copyright+0x1a18e
>  r14         0xffffffff80a13460  mutex_spin_lockops
>  r15         0xffffffff80a593e0  cpu_info_primary
>  rip         0xffffffff80482a95  breakpoint+0x5
>  cs          0xe030
>  rflags      0x246
>  rsp         0xffffa00012b5caa0
>  ss          0xe02b
>  netbsd:breakpoint+0x5:  leave
>
>
>  Typing sync at the db prompt appears to produce an endless loop:
>
>  Faulted in DDB; continuing...
>  breakpoint() at netbsd:breakpoint+0x5
>  panic() at netbsd:panic+0x25b
>  lockdebug_abort() at netbsd:lockdebug_abort+0x42
>  mutex_spin_retry() at netbsd:mutex_spin_retry+0x17
>  suspendsched() at netbsd:suspendsched+0xfe
>  vfs_shutdown() at netbsd:vfs_shutdown+0x33
>  cpu_reboot() at netbsd:cpu_reboot+0xdc
>  db_sync_cmd() at netbsd:db_sync_cmd+0x26
>  db_command() at netbsd:db_command+0xb8
>  db_command_loop() at netbsd:db_command_loop+0xe9
>  db_trap() at netbsd:db_trap+0x10d
>  kdb_trap() at netbsd:kdb_trap+0xc2
>  trap() at netbsd:trap+0x313
>  uvm_fault(0xffffffff80af55c0, 0x0, 1) -> e
>  kernel: page fault trap, code=0
>  Faulted in DDB; continuing...
>  breakpoint() at netbsd:breakpoint+0x5
>  panic() at netbsd:panic+0x25b
>  lockdebug_abort() at netbsd:lockdebug_abort+0x42
>  mutex_spin_retry() at netbsd:mutex_spin_retry+0x17
>  suspendsched() at netbsd:suspendsched+0xfe
>  vfs_shutdown() at netbsd:vfs_shutdown+0x33
>  cpu_reboot() at netbsd:cpu_reboot+0xdc
>  db_sync_cmd() at netbsd:db_sync_cmd+0x26
>  db_command() at netbsd:db_command+0xb8
>  db_command_loop() at netbsd:db_command_loop+0xe9
>  db_trap() at netbsd:db_trap+0x10d
>  kdb_trap() at netbsd:kdb_trap+0xc2
>  trap() at netbsd:trap+0x313
>  uvm_fault(0xffffffff80af55c0, 0x0, 1) -> e
>  kernel: page fault trap, code=0
>  Faulted in DDB; continuing...
>  breakpoint() at netbsd:breakpoint+0x5
>  panic() at netbsd:panic+0x25b
>  lockdebug_abort() at netbsd:lockdebug_abort+0x42
>  mutex_spin_retry() at netbsd:mutex_spin_retry+0x17
>  suspendsched() at netbsd:suspendsched+0xfe
>  vfs_shutdown() at netbsd:vfs_shutdown+0x33
>  cpu_reboot() at netbsd:cpu_reboot+0xdc
>  db_sync_cmd() at netbsd:db_sync_cmd+0x26
>  db_command() at netbsd:db_command+0xb8
>  db_command_loop() at netbsd:db_command_loop+0xe9
>  db_trap() at netbsd:db_trap+0x10d
>  kdb_trap() at netbsd:kdb_trap+0xc2
>  trap() at netbsd:trap+0x313
>  uvm_fault(0xffffffff80af55c0, 0x0, 1) -> e
>  kernel: page fault trap, code=0
>  Faulted in DDB; continuing...
>