[Crash-utility] [PATCH] Fix x86 initialization for {hard, soft}irq_ctx

[Dave Anderson]

----- Original Message -----
> Dave Anderson <anderson at redhat.com> writes:
> 
> > Actually, it supposed to be the function that was running on the process stack
> > prior to the transition to the IRQ stack.  So it should be "handle_irq" here
> > in arch/x86/kernel/irq_32.c:
> 
> I see.
> 
> [...]
> 
> >> crash> bt
> >> PID: 0      TASK: c1da8b00  CPU: 0   COMMAND: "swapper/0"
> >>  #0 [c1da1f60] __schedule at c19fe305
> >>  #1 [c1da1fa0] schedule at c19febb3
> >>  #2 [c1da1fac] schedule_preempt_disabled at c19ff0a2
> >>  #3 [c1da1fb4] cpu_startup_entry at c10a9580
> >> crash> bt 45
> >> PID: 45     TASK: f57d3a00  CPU: 3   COMMAND: "kworker/3:1"
> >> bt: cannot resolve stack trace:
> >> bt: Task in user space -- no backtrace
> >> 
> >> In above case, looks like failed to detect panic cpu, and "bt 45" also
> >> not working.
> 
> crash> bt 45
> PID: 45     TASK: f57d3a00  CPU: 3   COMMAND: "kworker/3:1"
> bt: cannot resolve stack trace:
> bt: Task in user space -- no backtrace
> 
> [...]
> 
> >> crash> bt
> >> PID: 31     TASK: f505e080  CPU: 1   COMMAND: "kworker/1:1"
> >>  #0 [f5a73de8] die at c101dc04
> >>  #1 [f5a73dfc] notify_die at c10809fc
> >>  #2 [f5a73e24] do_error_trap at c101ab1c
> >>  #3 [f5a73ec4] do_invalid_op at c101b2cf
> >>  #4 [f5a73ed4] error_code (via invalid_op) at c1a060fd
> >>     EAX: f505e080  EBX: f3da0000  ECX: 00000041  EDX: 0000c06a  EBP:
> >>     f5a73f28
> >>     DS:  007b      ESI: f3da154c  ES:  007b      EDI: 00000000  GS:
> >>     ffffb2b0
> >>     CS:  0060      EIP: c172b046  ERR: ffffffff  EFLAGS: 00210006
> >>  #5 [f5a73f08] __ata_sff_port_intr at c172b046
> >>  #6 [f5a73f2c] ata_bmdma_port_intr at c172b333
> >>  #7 [f5a73f50] ata_bmdma_interrupt at c172b576
> >>  #8 [f5a73f84] __handle_irq_event_percpu at c10cf376
> >>  #9 [f5a73fc0] handle_irq_event_percpu at c10cf7c9
> >> #10 [f5a73fd4] handle_irq_event at c10cf829
> >> #11 [f5a73fe8] handle_edge_irq at c10d2958
> >> --- <hard IRQ> ---
> >> bt: cannot resolve stack trace:
> >> bt: text symbols on stack:
> 
> crash> bt
> PID: 31     TASK: f505e080  CPU: 1   COMMAND: "kworker/1:1"
>  #0 [f5a73de8] die at c101dc04
>  #1 [f5a73dfc] notify_die at c10809fc
>  #2 [f5a73e24] do_error_trap at c101ab1c
>  #3 [f5a73ec4] do_invalid_op at c101b2cf
>  #4 [f5a73ed4] error_code (via invalid_op) at c1a060fd
>     EAX: f505e080  EBX: f3da0000  ECX: 00000041  EDX: 0000c06a  EBP: f5a73f28
>     DS:  007b      ESI: f3da154c  ES:  007b      EDI: 00000000  GS:  ffffb2b0
>     CS:  0060      EIP: c172b046  ERR: ffffffff  EFLAGS: 00210006
>  #5 [f5a73f08] __ata_sff_port_intr at c172b046
>  #6 [f5a73f2c] ata_bmdma_port_intr at c172b333
>  #7 [f5a73f50] ata_bmdma_interrupt at c172b576
>  #8 [f5a73f84] __handle_irq_event_percpu at c10cf376
>  #9 [f5a73fc0] handle_irq_event_percpu at c10cf7c9
> #10 [f5a73fd4] handle_irq_event at c10cf829
> #11 [f5a73fe8] handle_edge_irq at c10d2958
> --- <hard IRQ> ---
> bt: cannot resolve stack trace:
> bt: text symbols on stack:
> 
> 
> > OK thanks.  Please send patches as required.
> 
> Like above, bt is still not working yet though. Attached the patch to fix
> typo.
> 
> Thanks.
> --
> OGAWA Hirofumi <hirofumi at mail.parknet.co.jp>

Already checked in!

  https://github.com/crash-utility/crash/commit/e71102d356de70488549184a57ea652860a4ea48

Thanks,
  Dave



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