Re: INVARIANTS-related fs panic on alpha

[Kris Kennaway]

On Sat, Jan 25, 2003 at 12:12:34AM -0800, Kris Kennaway wrote:
> One of the alpha package clients panicked with this.  It was under
> very high load at the time (25 simultaneous package builds):
> 
> fatal kernel trap:
> 
>     trap entry     = 0x2 (memory management fault)
>     faulting va    = 0xdeadc0dedeadc0e6
>     type           = access violation
>     cause          = store instruction
>     pc             = 0xfffffc000053453c
>     ra             = 0xfffffc000053b2a8
>     sp             = 0xfffffe001da15b30
>     curthread      = 0xfffffc003e33b930
>         pid = 3, comm = g_up
> 
> Stopped at      add_to_worklist+0xac:   stq     a0,0x8(t0) <0xdeadc0dedeadc0e6> 
><a0=0xfffffc0035deb200,t0=0xdeadc0dedeadc0de>
> db> trace
> add_to_worklist() at add_to_worklist+0xac
> handle_written_inodeblock() at handle_written_inodeblock+0x5e8
> softdep_disk_write_complete() at softdep_disk_write_complete+0xac
> bufdone() at bufdone+0x19c
> bufdonebio() at bufdonebio+0x1c
> biodone() at biodone+0x28
> g_dev_done() at g_dev_done+0xd8
> biodone() at biodone+0x28
> g_io_schedule_up() at g_io_schedule_up+0x4c
> g_up_procbody() at g_up_procbody+0x9c
> fork_exit() at fork_exit+0x100
> exception_return() at exception_return
> --- root of call graph ---
> db>

Here it is again:

fatal kernel trap:

    trap entry     = 0x4 (unaligned access fault)
    faulting va    = 0xdeadc0dedeadc0e6
    opcode         = 0x2d
    register       = 0x10
    pc             = 0xfffffc0000534540
    ra             = 0xfffffc000053b2a8
    sp             = 0xfffffe0006c0fb30
    curthread      = 0xfffffc0007ba7930
        pid = 3, comm = g_up

Stopped at      add_to_worklist+0xb0:   ldq     t0,0x7c60(gp) <0xfffffc00006581d0>     
 <t0=0xdeadc0dedeadc0de,gp=0xfffffc0000650570>
db> trace
add_to_worklist() at add_to_worklist+0xb0
handle_written_inodeblock() at handle_written_inodeblock+0x5e8
softdep_disk_write_complete() at softdep_disk_write_complete+0xac
bufdone() at bufdone+0x19c
bufdonebio() at bufdonebio+0x1c
biodone() at biodone+0x28
g_dev_done() at g_dev_done+0xd8
biodone() at biodone+0x28
g_io_schedule_up() at g_io_schedule_up+0x4c
g_up_procbody() at g_up_procbody+0x9c
fork_exit() at fork_exit+0x100
exception_return() at exception_return
--- root of call graph ---
db>

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