Re: [Xenomai-help] Xenomai and MSI enabled crashes kernel

["M. Koehrer" <mathias_koehrer@domain.hid>]

Hi Philippe,

I have applied the patches as proposed.
However, the kernel still freezes.
Here is the corresponding message.

Regards

Mathias
======================================================
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 #6)
EIP is at _stext+0x3feffc70/0x14
eax: c01123d4   ebx: 00000007   ecx: c01144dd   edx: dfbd2000
esi: 00000006   edi: 00000046   ebp: ffffffff   esp: dfbd3e20
ds: 007b   es: 007b   ss: 0068
Process ifconfig (pid: 1241, ti=dfbd2000 task=c1632030 task.ti=dfbd2000)
Stack: c03e6f00 000000ec 00000000 c03d9180 c010f110 00007600 00000001 00000060
       e099a1ed 00000286 ffffff24 df7575c8 00000000 0000000f 00000001 c01035b9
       df7575c8 e099a0ff e09c0000 00000000 0000000f 00000001 80080740 dfd1007b
Call Trace:
 [<c010f110>] __ipipe_handle_irq+0x1c6/0x218
 [<e099a1ed>] e1000_set_multi+0xee/0x189 [e1000]
 [<c01035b9>] common_interrupt+0x21/0x38
 [<e099a0ff>] e1000_set_multi+0x0/0x189 [e1000]
 [<e099a1ed>] e1000_set_multi+0xee/0x189 [e1000]
 [<c02dd111>] __dev_mc_upload+0x1d/0x1e
 [<c02dd231>] dev_mc_upload+0x24/0x37
 [<c02db73c>] dev_open+0x44/0x62
 [<c02da209>] dev_change_flags+0x47/0xe4
 [<c030d322>] devinet_ioctl+0x252/0x56f
 [<c02db31a>] dev_ifsioc+0x113/0x38d
 [<c02d1734>] sock_ioctl+0x0/0x1ad
 [<c02d18c2>] sock_ioctl+0x18e/0x1ad
 [<c02d1734>] sock_ioctl+0x0/0x1ad
 [<c015e31f>] do_ioctl+0x1f/0x62
 [<c015e5a6>] vfs_ioctl+0x244/0x256
 [<c015e5eb>] sys_ioctl+0x33/0x4c
 [<c01029f3>] sysenter_past_esp+0x6c/0x70
 =======================
Code:  Bad EIP value.
EIP: [<00000000>] _stext+0x3feffc70/0x14 SS:ESP 0068:dfbd3e20
 <0>Kernel panic - not syncing: Fatal exception in interrupt
 BUG: at arch/i386/kernel/smp.c:565 smp_call_function()
 [<c010ba83>] smp_call_function+0x66/0x10a
 [<c0118fa2>] printk+0x62/0xd5
 [<c010bb42>] smp_send_stop+0x1b/0x2b
 [<c011853d>] panic+0x4d/0xe4
 [<c01040f1>] die+0x1f2/0x226
 [<c011180c>] do_page_fault+0x447/0x517
 [<c010f7aa>] __ipipe_handle_exception+0xce/0x158
 [<c010bc9e>] smp_call_function_interrupt+0x31/0x4c
 [<c03334fd>] error_code+0x81/0x90
 [<c01144dd>] try_to_wake_up+0x33c/0x346
 [<c01123d4>] __activate_task+0x1c/0x29
 [<c010f110>] __ipipe_handle_irq+0x1c6/0x218
 [<e099a1ed>] e1000_set_multi+0xee/0x189 [e1000]
 [<c01035b9>] common_interrupt+0x21/0x38
 [<e099a0ff>] e1000_set_multi+0x0/0x189 [e1000]
 [<e099a1ed>] e1000_set_multi+0xee/0x189 [e1000]
 [<c02dd111>] __dev_mc_upload+0x1d/0x1e
 [<c02dd231>] dev_mc_upload+0x24/0x37
 [<c02db73c>] dev_open+0x44/0x62
 [<c02da209>] dev_change_flags+0x47/0xe4
 [<c030d322>] devinet_ioctl+0x252/0x56f
 [<c02db31a>] dev_ifsioc+0x113/0x38d
 [<c02d1734>] sock_ioctl+0x0/0x1ad
 [<c02d18c2>] sock_ioctl+0x18e/0x1ad
 [<c02d1734>] sock_ioctl+0x0/0x1ad
 [<c015e31f>] do_ioctl+0x1f/0x62
 [<c015e5a6>] vfs_ioctl+0x244/0x256
 [<c015e5eb>] sys_ioctl+0x33/0x4c
 [<c01029f3>] sysenter_past_esp+0x6c/0x70
 =======================


> On Fri, 2007-04-27 at 22:39 +0200, Philippe Gerum wrote:
> > On Fri, 2007-04-27 at 17:10 +0200, M. Koehrer wrote:
> > > Hi Philippe,
> > > 
> > > here is the next result (I have switched off the "quiet" kernel
> parameter to get everything).
> > > 
> > 
> > There is a SMP-related bugfix regarding our IPI namespace I need to
> > backport from x86_64 to x86. Not sure this is what bites us here yet,
> > but there is no use to chase the wild goose. In any case, CONFIG_PCI_MSI
> > clearly worsens the situation regarding this issue.
> 
> Here we are, please apply the first patch against a stock I-pipe 1.7-03
> kernel, then the second one against a vanilla Xenomai v2.3.x tree.
> 
> What the first patch does is moving the system IRQs out of the regular
> interrupt namespace wrt Adeos handling, which could solve possible
> conflicts whenever CONFIG_PCI_MSI is on. The second patch makes the
> Xenomai tree aware of the differentiated namespaces.
> 
> -- 
> Philippe.
> 
> 

-- 
Mathias Koehrer
mathias_koehrer@domain.hid


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