kernel opps during PCI read

Hiya, I'm running into the following issue running on our custom PPC8270
(PQ2FADS style) system.

It only seems to happen when we load the system just a little (more PCI
interrupts and transactions).

 

Any ideas?

 

 

/ # [  456.440195] Machine check in kernel mode.

[  456.442646] Caused by (from SRR1=41030): Transfer error ack signal

[  456.448828] Oops: machine check, sig: 7 [#1]

[  456.453088] PREEMPT

[  456.455269] NIP: C00119CC LR: C0011914 CTR: C0011334

[  456.460233] REGS: c01fbd40 TRAP: 0200   Tainted: P       (2.6.17.3)

[  456.466493] MSR: 00041030 <ME,IR,DR>  CR: 22002082  XER: 20000000

[  456.472589] TASK = c01b5f20[0] 'swapper' THREAD: c01fa000

[  456.477809] GPR00: 00000000 C01FBDF0 C01B5F20 00000000 FFFFFF7F
00000003 00000001 C01FBE18

[  456.486164] GPR08: 00000000 F0010904 00000000 F0010907 00000000
100934F0 07FFF000 00000001

[  456.494520] GPR16: 00800000 07FFE964 FFFFFFFF 00000000 07FFC6BC
007FFF00 FF800040 07FA7770

[  456.502876] GPR24: C0210000 C01FBE58 00000001 000000CF C01FBE18
000000A0 C024A000 C03AAA00

[  456.511406] NIP [C00119CC] indirect_read_config+0x100/0x14c

[  456.516977] LR [C0011914] indirect_read_config+0x48/0x14c

[  456.522373] Call Trace:

[  456.524812] [C01FBDF0] [C01FA028] init_thread_union+0x28/0x2000
(unreliable)

[  456.531862] [C01FBE10] [C00E2FB0] pci_bus_read_config_byte+0x60/0xa8

[  456.538216] [C01FBE50] [C909373C] OnInterrupt+0x40/0x178 [bridge]

[  456.544309] [C01FBE70] [C003EA54] handle_IRQ_event+0x64/0xb8

[  456.549966] [C01FBE90] [C003EBE0] __do_IRQ+0x138/0x1c0

[  456.555102] [C01FBEC0] [C0009D04] do_IRQ+0x44/0x88

[  456.559889] [C01FBEE0] [C0004914] ret_from_except+0x0/0x14

[  456.565372] [C01FBFA0] [C000C9B8] cpu_idle+0xe0/0xf8

[  456.570334] [C01FBFB0] [C0003A64] rest_init+0x3c/0x4c

[  456.575382] [C01FBFC0] [C01FC6C4] start_kernel+0x1d0/0x228

[  456.580865] [C01FBFF0] [000032C0] 0x32c0

[  456.584781] Instruction dump:

[  456.587741] bb410008 38210020 7c0803a6 4e800020 887f004c 813e0010
5460063e 7c004a78

[  456.595487] 3120ffff 7d490110 4bffff70 7c0928ae <0c000000> 4c00012c
901c0000 38600000

 [  456.615184] Kernel panic - not syncing: Aiee, killing interrupt
handler!

 

Cheers

Tony

 

Tony Hardie B.Sc
VX Software Architect
Net.com
6900 Paseo Padre Parkway
Fremont
CA, 94555
Ph: 510-574-2386
Mob: 510-449-4339

 

The machine checking is happening when you configuration read from PCI
bus.
please check the register settings for PCI.
 
-DAve

	Hiya, I'm running into the following issue running on our custom
PPC8270 (PQ2FADS style) system.

	It only seems to happen when we load the system just a little
(more PCI interrupts and transactions).

	 

	Any ideas?

	 

	 

	/ # [  456.440195] Machine check in kernel mode.

	[  456.442646] Caused by (from SRR1=41030): Transfer error ack
signal

	[  456.448828] Oops: machine check, sig: 7 [#1]

	[  456.453088] PREEMPT

	[  456.455269] NIP: C00119CC LR: C0011914 CTR: C0011334

	[  456.460233] REGS: c01fbd40 TRAP: 0200   Tainted: P
(2.6.17.3)

	[  456.466493] MSR: 00041030 <ME,IR,DR>  CR: 22002082  XER:
20000000

	[  456.472589] TASK = c01b5f20[0] 'swapper' THREAD: c01fa000

	[  456.477809] GPR00: 00000000 C01FBDF0 C01B5F20 00000000
FFFFFF7F 00000003 00000001 C01FBE18

	[  456.486164] GPR08: 00000000 F0010904 00000000 F0010907
00000000 100934F0 07FFF000 00000001

	[  456.494520] GPR16: 00800000 07FFE964 FFFFFFFF 00000000
07FFC6BC 007FFF00 FF800040 07FA7770

	[  456.502876] GPR24: C0210000 C01FBE58 00000001 000000CF
C01FBE18 000000A0 C024A000 C03AAA00

	[  456.511406] NIP [C00119CC] indirect_read_config+0x100/0x14c

	[  456.516977] LR [C0011914] indirect_read_config+0x48/0x14c

	[  456.522373] Call Trace:

	[  456.524812] [C01FBDF0] [C01FA028]
init_thread_union+0x28/0x2000 (unreliable)

	[  456.531862] [C01FBE10] [C00E2FB0]
pci_bus_read_config_byte+0x60/0xa8

	[  456.538216] [C01FBE50] [C909373C] OnInterrupt+0x40/0x178
[bridge]

	[  456.544309] [C01FBE70] [C003EA54] handle_IRQ_event+0x64/0xb8

	[  456.549966] [C01FBE90] [C003EBE0] __do_IRQ+0x138/0x1c0

	[  456.555102] [C01FBEC0] [C0009D04] do_IRQ+0x44/0x88

	[  456.559889] [C01FBEE0] [C0004914] ret_from_except+0x0/0x14

	[  456.565372] [C01FBFA0] [C000C9B8] cpu_idle+0xe0/0xf8

	[  456.570334] [C01FBFB0] [C0003A64] rest_init+0x3c/0x4c

	[  456.575382] [C01FBFC0] [C01FC6C4] start_kernel+0x1d0/0x228

	[  456.580865] [C01FBFF0] [000032C0] 0x32c0

	[  456.584781] Instruction dump:

	[  456.587741] bb410008 38210020 7c0803a6 4e800020 887f004c
813e0010 5460063e 7c004a78

	[  456.595487] 3120ffff 7d490110 4bffff70 7c0928ae <0c000000>
4c00012c 901c0000 38600000

	 [  456.615184] Kernel panic - not syncing: Aiee, killing
interrupt handler!

	 

	Cheers

	Tony

	 

	Tony Hardie B.Sc
	VX Software Architect
	Net.com
	6900 Paseo Padre Parkway
	Fremont
	CA, 94555
	Ph: 510-574-2386
	Mob: 510-449-4339