Re: fatal kernel trap

Anton Shterenlikht <[email protected]>
Newsgroups gmane.os.freebsd.devel.ia64
Message-ID <[email protected]> 
On Tue, Feb 07, 2012 at 10:23:05AM +0000, Anton Shterenlikht wrote:
> On Tue, Feb 07, 2012 at 09:47:13AM +0000, Anton Shterenlikht wrote:
> > On Mon, Feb 06, 2012 at 02:44:44PM +0000, Anton Shterenlikht wrote:
> > > > fatal kernel trap (cpu 1):
> > > > 
> > > >     trap vector = 0x14 (Page Not Present)
> > > >     cr.iip      = 0x9ffc0000008cb960
> > > >     cr.ipsr     = 0x1010080a6018 (ac,mfl,ic,i,dt,dfh,rt,cpl=0,it,ri=0,bn)
> > > >     cr.isr      = 0x400000000 (code=0,vector=0,r,ei=0)
> > > >     cr.ifa      = 0x168
> > > >     curthread   = 0xe000000011a9f9e0
> > > >         pid = 760, comm = dig
> > > > 
> > > > [ thread pid 760 tid 100073 ]
> > > > Stopped at      cpu_set_upcall+0x190:   [M0]    ld8 r14=[r14] ;;
> > > > db> 
> > > > db> show proc 760
> > > > Process 760 (dig) at 0xe000000011a9a8e0:
> > > >  state: NORMAL
> > > >  uid: 0  gids: 0
> > > >  parent: pid 759 at 0xe000000011b64000
> > > >  ABI: FreeBSD ELF64
> > > >  arguments: dig
> > > >  threads: 1
> > > > 100073                   Run     CPU 1                       dig
> > > > db> 
> > > > db> thread 100073
> > > > [ thread pid 760 tid 100073 ]
> > > > cpu_set_upcall+0x190:   [M0]    ld8 r14=[r14] ;;
> > > > db>
> > > > db> bt
> > > > Tracing pid 760 tid 100073 td 0xe000000011a9f9e0
> > > > cpu_set_upcall(0xe000000011a9e8a0, 0xe000000011a9f9e0, 0xa0000000f87ab780, 0xa0000000f87ab550) at cpu_set_upcall+0x190
> > > > create_thread(0xe000000011a9f9e0, 0x0, 0x1209a7090, 0x120c04800, 0x7fffffffff9fe000, 0x200000, 0x12039c200, 0x120c04800) at create_thread+0x1c0
> > > > kern_thr_new(0xe000000011a9f9e0, 0xa0000000f872b330, 0x9ffc000000436360) at kern_thr_new+0x100
> > > > sys_thr_new(0xe000000011a9f9e0, 0xa0000000f872b4e8, 0x9ffc0000008c6bf0, 0x48d) at sys_thr_new+0xa0
> > > > syscall(0xe000000011a9a8e0, 0xa0000000f872b3a8, 0x120c0442c, 0xe000000011a9f9e0, 0x0, 0x0, 0x9ffc0000008c2ec0, 0x8) at syscall+0x550
> > > > epc_syscall_return() at epc_syscall_return
> > > > db> 
> > 
> > This panic now happens very often:
> > 
> > fatal kernel trap (cpu 0):
> > 
> >     trap vector = 0x14 (Page Not Present)
> >     cr.iip      = 0x9ffc0000008cb960
> >     cr.ipsr     = 0x1010080a6018 (ac,mfl,ic,i,dt,dfh,rt,cpl=0,it,ri=0,bn)
> >     cr.isr      = 0x400000000 (code=0,vector=0,r,ei=0)
> >     cr.ifa      = 0x168
> >     curthread   = 0xe0000000114159e0
> >         pid = 57093, comm = csup
> > 
> > [ thread pid 57093 tid 100058 ]
> > Stopped at      cpu_set_upcall+0x190:   [M0]    ld8 r14=[r14] ;;
> > db> 
> > db> show thread
> > Thread 100058 at 0xe0000000114159e0:
> >  proc (pid 57093): 0xe00000001198ed50
> >  name: csup
> >  stack: 0xa0000000ecd4e000-0xa0000000ecd55fff
> >  flags: 0x4  pflags: 0
> >  state: RUNNING (CPU 0)
> >  priority: 126
> >  container lock: sched lock 0 (0x9ffc000000ca6a00)
> > db> 
> > db> show proc
> > Process 57093 (csup) at 0xe00000001198ed50:
> >  state: NORMAL
> >  uid: 0  gids: 0, 5
> >  parent: pid 57091 at 0xe000000011aac470
> >  ABI: FreeBSD ELF64
> >  arguments: /usr/bin/csup
> >  threads: 1
> > 100058                   Run     CPU 0                       csup
> > db> 
> > db> bt
> > Tracing pid 57093 tid 100058 td 0xe0000000114159e0
> > cpu_set_upcall(0xe000000015e79590, 0xe0000000114159e0, 0xa0000000f89fb780, 0xa0000000f89fb550) at cpu_set_upcall+0x190
> > create_thread(0xe0000000114159e0, 0x0, 0x1200b3890, 0x120805800, 0x7fffffffff9fe000, 0x200000, 0x1200b6200, 0x120805800) at create_thread+0x1c0
> > kern_thr_new(0xe0000000114159e0, 0xa0000000ecd55330, 0x9ffc000000436360) at kern_thr_new+0x100
> > sys_thr_new(0xe0000000114159e0, 0xa0000000ecd554e8, 0x9ffc0000008c6bf0, 0x48d) at sys_thr_new+0xa0
> > syscall(0xe00000001198ed50, 0xa0000000ecd553a8, 0x12080442c, 0xe0000000114159e0, 0x0, 0x0, 0x9ffc0000008c2ec0, 0x8) at syscall+0x550
> > epc_syscall_return() at epc_syscall_return
> > db> 
> 
> and again:
> 
> fatal kernel trap (cpu 0):
> 
>     trap vector = 0x14 (Page Not Present)
>     cr.iip      = 0x9ffc0000008d1960
>     cr.ipsr     = 0x1010080a6018 (ac,mfl,ic,i,dt,dfh,rt,cpl=0,it,ri=0,bn)
>     cr.isr      = 0x400000000 (code=0,vector=0,r,ei=0)
>     cr.ifa      = 0x168
>     curthread   = 0xe000000011ed88a0
>         pid = 1002, comm = csup
> 
> [ thread pid 1002 tid 100104 ]
> Stopped at      cpu_set_upcall+0x190:   [M0]    ld8 r14=[r14] ;;
> db> show thread
> Thread 100104 at 0xe000000011ed88a0:
>  proc (pid 1002): 0xe000000011b70470
>  name: csup
>  stack: 0xa0000000f881c000-0xa0000000f8823fff
>  flags: 0x4  pflags: 0
>  state: RUNNING (CPU 0)
>  priority: 121
>  container lock: sched lock 0 (0x9ffc000000cb6b80)
> db> show proc
> Process 1002 (csup) at 0xe000000011b70470:
>  state: NORMAL
>  uid: 0  gids: 0, 5
>  parent: pid 998 at 0xe000000011fc8470
>  ABI: FreeBSD ELF64
>  arguments: csup
>  threads: 1
> 100104                   Run     CPU 0                       csup
> db> bt
> Tracing pid 1002 tid 100104 td 0xe000000011ed88a0
> cpu_set_upcall(0xe000000011b8a000, 0xe000000011ed88a0, 0xa0000000f889b780, 0xa0000000f889b550) at cpu_set_upcall+0x190
> create_thread(0xe000000011ed88a0, 0x0, 0x1200b3890, 0x120805800, 0x7fffffffff9fe000, 0x200000, 0x1200b6200, 0x120805800) at create_thread+0x1c0
> kern_thr_new(0xe000000011ed88a0, 0xa0000000f8823330, 0x9ffc0000004363d0) at kern_thr_new+0x100
> sys_thr_new(0xe000000011ed88a0, 0xa0000000f88234e8, 0x9ffc0000008ccbf0, 0x48d) at sys_thr_new+0xa0
> syscall(0xe000000011b70470, 0xa0000000f88233a8, 0x12080442c, 0xe000000011ed88a0, 0x0, 0x0, 0x9ffc0000008c80a0, 0x8) at syscall+0x550
> epc_syscall_return() at epc_syscall_return
> db> 

Now it's ruby:

fatal kernel trap (cpu 1):

    trap vector = 0x14 (Page Not Present)
    cr.iip      = 0x9ffc0000008d1960
    cr.ipsr     = 0x1010080a6018 (ac,mfl,ic,i,dt,dfh,rt,cpl=0,it,ri=0,bn)
    cr.isr      = 0x400000000 (code=0,vector=0,r,ei=0)
    cr.ifa      = 0x168
    curthread   = 0xe000000012122000
        pid = 3832, comm = ruby

[ thread pid 3832 tid 100130 ]
Stopped at      cpu_set_upcall+0x190:   [M0]    ld8 r14=[r14] ;;
db> show thread
Thread 100130 at 0xe000000012122000:
 proc (pid 3832): 0xe000000012112d50
 name: ruby
 stack: 0xa0000000f88ec000-0xa0000000f88f3fff
 flags: 0x10004  pflags: 0
 state: RUNNING (CPU 1)
 priority: 182
 container lock: sched lock 1 (0x9ffc000000cb7800)
db> show proc
Process 3832 (ruby) at 0xe000000012112d50:
 state: NORMAL
 uid: 0  gids: 0, 5
 parent: pid 2574 at 0xe000000011c78470
 ABI: FreeBSD ELF64
 arguments: /usr/local/bin/ruby
 threads: 1
100130                   Run     CPU 1                       ruby
db> bt
Tracing pid 3832 tid 100130 td 0xe000000012122000
cpu_set_upcall(0xe000000012120cf0, 0xe000000012122000, 0xa0000000f8913780, 0xa0000000f8913550) at cpu_set_upcall+0x190
create_thread(0xe000000012122000, 0x0, 0x14064bac0, 0x140804800, 0x7ffffffff3bfe000, 0xc000000, 0x14008c200, 0x140804800) at create_thread+0x1c0
kern_thr_new(0xe000000012122000, 0xa0000000f88f3330, 0x9ffc0000004363d0) at kern_thr_new+0x100
sys_thr_new(0xe000000012122000, 0xa0000000f88f34e8, 0x9ffc0000008ccbf0, 0x48d) at sys_thr_new+0xa0
syscall(0xe000000012112d50, 0xa0000000f88f33a8, 0x14080442c, 0xe000000012122000, 0x0, 0x0, 0x9ffc0000008c80a0, 0x8) at syscall+0x550
epc_syscall_return() at epc_syscall_return
db> 

-- 
Anton Shterenlikht
Room 2.6, Queen's Building
Mech Eng Dept
Bristol University
University Walk, Bristol BS8 1TR, UK
Tel: +44 (0)117 331 5944
Fax: +44 (0)117 929 4423
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