Hi Jan,
I have done three experiments:
1. Using my kernel without any additional test-patches
2. Activating the trace stuff in the .config file
3. Applying your patches from today
I hope this helps...
Regards
Mathias
Here are the three relevant result files:
************************************** 1
**********************************************
Intel(R) PRO/1000 Network Driver - version 7.3.15-k2
Copyright (c) 1999-2006 Intel Corporation.
ACPI: PCI Interrupt 0000:05:00.0[A] -> GSI 16 (level, low) -> IRQ 16
e1000: 0000:05:00.0: e1000_probe: (PCI Express:2.5Gb/s:Width x1)
00:30:48:5a:f9:0a
e1000: eth0: e1000_probe: Intel(R) PRO/1000 Network Connection
BUG: unable to handle kernel NULL pointer dereference at virtual address
00000000
printing eip:
00000000
*pde = 00000000
Oops: 0000 [#1]
SMP
Modules linked in: e1000
CPU: 0
EIP: 0060:[<00000000>] Not tainted VLI
EFLAGS: 00010086 (2.6.20.4 #3)
EIP is at _stext+0x3feffc70/0x14
eax: c0112244 ebx: 00000006 ecx: c011434d edx: df860000
esi: 00000006 edi: 00000046 ebp: ffffffff esp: df861e20
ds: 007b es: 007b ss: 0068
Process ifconfig (pid: 1242, ti=df860000 task=dfdd0030 task.ti=df860000)
Stack: c03e5680 000000db 00000000 c03d9100 c010ef83 00006d80 00000001 00000060
e099a210 00000286 ffffff24 df7085c8 00000000 0000000f 00000001 c0103439
df7085c8 e099a0ff e09c0000 00000000 0000000f 00000001 80080740 dfc7007b
Call Trace:
[<c010ef83>] __ipipe_handle_irq+0x1b9/0x20b
[<e099a210>] e1000_set_multi+0x111/0x189 [e1000]
[<c0103439>] common_interrupt+0x21/0x38
[<e099a0ff>] e1000_set_multi+0x0/0x189 [e1000]
[<e099a210>] e1000_set_multi+0x111/0x189 [e1000]
[<c02dcf81>] __dev_mc_upload+0x1d/0x1e
[<c02dd0a1>] dev_mc_upload+0x24/0x37
[<c02db5ac>] dev_open+0x44/0x62
[<c02da079>] dev_change_flags+0x47/0xe4
[<c030d192>] devinet_ioctl+0x252/0x56f
[<c02db18a>] dev_ifsioc+0x113/0x38d
[<c02d15a4>] sock_ioctl+0x0/0x1ad
[<c02d1732>] sock_ioctl+0x18e/0x1ad
[<c02d15a4>] sock_ioctl+0x0/0x1ad
[<c015e18f>] do_ioctl+0x1f/0x62
[<c015e416>] vfs_ioctl+0x244/0x256
[<c015e45b>] sys_ioctl+0x33/0x4c
[<c01029f3>] sysenter_past_esp+0x6c/0x70
=======================
Code: Bad EIP value.
EIP: [<00000000>] _stext+0x3feffc70/0x14 SS:ESP 0068:df861e20
<0>Kernel panic - not syncing: Fatal exception in interrupt
BUG: at arch/i386/kernel/smp.c:565 smp_call_function()
[<c010b903>] smp_call_function+0x66/0x10a
[<c0118e12>] printk+0x62/0xd5
[<c010b9c2>] smp_send_stop+0x1b/0x2b
[<c01183ad>] panic+0x4d/0xe4
[<c0103f71>] die+0x1f2/0x226
[<c011167c>] do_page_fault+0x447/0x517
[<c010f61d>] __ipipe_handle_exception+0xce/0x158
[<c010bb1e>] smp_call_function_interrupt+0x31/0x4c
[<c033336d>] error_code+0x81/0x90
[<c011434d>] try_to_wake_up+0x33c/0x346
[<c0112244>] __activate_task+0x1c/0x29
[<c010ef83>] __ipipe_handle_irq+0x1b9/0x20b
[<e099a210>] e1000_set_multi+0x111/0x189 [e1000]
[<c0103439>] common_interrupt+0x21/0x38
[<e099a0ff>] e1000_set_multi+0x0/0x189 [e1000]
[<e099a210>] e1000_set_multi+0x111/0x189 [e1000]
[<c02dcf81>] __dev_mc_upload+0x1d/0x1e
[<c02dd0a1>] dev_mc_upload+0x24/0x37
[<c02db5ac>] dev_open+0x44/0x62
[<c02da079>] dev_change_flags+0x47/0xe4
[<c030d192>] devinet_ioctl+0x252/0x56f
[<c02db18a>] dev_ifsioc+0x113/0x38d
[<c02d15a4>] sock_ioctl+0x0/0x1ad
[<c02d1732>] sock_ioctl+0x18e/0x1ad
[<c02d15a4>] sock_ioctl+0x0/0x1ad
[<c015e18f>] do_ioctl+0x1f/0x62
[<c015e416>] vfs_ioctl+0x244/0x256
[<c015e45b>] sys_ioctl+0x33/0x4c
[<c01029f3>] sysenter_past_esp+0x6c/0x70
=======================
************************************** 2
**********************************************
Intel(R) PRO/1000 Network Driver - version 7.3.15-k2
Copyright (c) 1999-2006 Intel Corporation.
ACPI: PCI Interrupt 0000:05:00.0[A] -> GSI 16 (level, low) -> IRQ 16
e1000: 0000:05:00.0: e1000_probe: (PCI Express:2.5Gb/s:Width x1)
00:30:48:5a:f9:0a
e1000: eth0: e1000_probe: Intel(R) PRO/1000 Network Connection
BUG: scheduling while atomic: ifconfig/0x00010000/1242
[<c0103d34>] show_trace_log_lvl+0x1f/0x34
[<c01043b4>] show_trace+0x17/0x19
[<c010444c>] dump_stack+0x1b/0x1d
[<c0349ffb>] __sched_text_start+0x8b/0x8af
[<c0102ca3>] work_resched+0x6/0x1c
=======================
Kernel panic - not syncing: Aiee, killing interrupt handler!
************************************** 3
**********************************************
Intel(R) PRO/1000 Network Driver - version 7.3.15-k2
Copyright (c) 1999-2006 Intel Corporation.
ACPI: PCI Interrupt 0000:05:00.0[A] -> GSI 16 (level, low) -> IRQ 16
e1000: 0000:05:00.0: e1000_probe: (PCI Express:2.5Gb/s:Width x1)
00:30:48:5a:f9:0a
e1000: eth0: e1000_probe: Intel(R) PRO/1000 Network Connection
BUG: scheduling while atomic: ifconfig/0x00010000/1241
[<c0103d34>] show_trace_log_lvl+0x1f/0x34
[<c01043b4>] show_trace+0x17/0x19
[<c010444c>] dump_stack+0x1b/0x1d
[<c034a01b>] __sched_text_start+0x8b/0x8af
[<c0102ca3>] work_resched+0x6/0x1c
=======================
Kernel panic - not syncing: Aiee, killing interrupt handler!
I-pipe tracer log (30 points):
+func 0 ipipe_trace_panic_freeze+0x9
(bust_spinlocks+0x1b)
+func 0 bust_spinlocks+0xc (panic+0x17)
+func 0 panic+0xd (do_exit+0x78)
+func 0 do_exit+0xe (sys_exit_group+0x0)
+func 0 do_group_exit+0xb (get_signal_to_deliver+0x388)
| +end 0x80000000 -1 __ipipe_unstall_root+0x56
(__ipipe_restore_root+0x18)
| #begin 0x80000000 -1 __ipipe_unstall_root+0x1a
(__ipipe_restore_root+0x18)
#func -1 __ipipe_unstall_root+0x8
(__ipipe_restore_root+0x18)
#func -1 __ipipe_restore_root+0x8
(_spin_unlock_irqrestore+0x1e)
#func -2 _spin_unlock_irqrestore+0x8 (complete_all+0x48)
#func -2 __wake_up_common+0xe (complete_all+0x3f)
| #end 0x80000001 -2 __ipipe_stall_root+0x47
(_spin_lock_irqsave+0x21)
| +begin 0x80000001 -2 __ipipe_stall_root+0x21
(_spin_lock_irqsave+0x21)
+func -3 __ipipe_stall_root+0xa (_spin_lock_irqsave+0x21)
| +end 0x80000001 -3 __ipipe_test_root+0x41 (_spin_lock_irqsave+0x11)
| +begin 0x80000001 -3 __ipipe_test_root+0x1f (_spin_lock_irqsave+0x11)
+func -3 __ipipe_test_root+0xa (_spin_lock_irqsave+0x11)
+func -3 _spin_lock_irqsave+0xa (complete_all+0x1a)
+func -4 complete_all+0xe (do_coredump+0x587)
+func -4 up_write+0x8 (do_coredump+0x1cf)
| +end 0x80000000 -4 __ipipe_unstall_root+0x56 (do_coredump+0x139)
| #begin 0x80000000 -5 __ipipe_unstall_root+0x1a (do_coredump+0x139)
#func -5 __ipipe_unstall_root+0x8 (do_coredump+0x139)
#func -5 zap_process+0xa (do_coredump+0x120)
| #end 0x80000001 -6 __ipipe_stall_root+0x47 (_spin_lock_irq+0x10)
| +begin 0x80000001 -6 __ipipe_stall_root+0x21 (_spin_lock_irq+0x10)
+func -6 __ipipe_stall_root+0xa (_spin_lock_irq+0x10)
+func -6 _spin_lock_irq+0x9 (do_coredump+0xfd)
+func -6 init_waitqueue_head+0x8 (do_coredump+0xe7)
+func -7 init_waitqueue_head+0x8 (do_coredump+0xd5)
> M. Koehrer wrote:
> > Hi Jan,
> >
> > enclosed is the output of this experiment.
> > I have removed all patches from last week before applying the new patch.
> >
>
> This BUG look now very different from your previous issue. Are you sure
> you build is consistent? Maybe the not-yet-backported IPI bug over
> x86_64 actually cause this heisenbug, don't know.
>
> Well, if and only if you have nothing better to do ;), you could retry,
> starting a test with a patch-free tree, then switching on the tracer and
> testing again, and finally re-applying my last patch. But we may also
> wait for Philippe to provide the IPI fix first.
>
> Jan
>
>
--
Mathias Koehrer
[EMAIL PROTECTED]
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