Re: PROBLEM: 2.6.7 Linux Kernel Crash While Detecting PCI Devices

From: Jonathan Sambrook
Date: Tue Aug 17 2004 - 15:26:51 EST

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At 12:22 on Fri 06/08/04, jriggs@xxxxxxxxxxx masquerading as 'John Riggs' wrote:
> Summary: 2.6.7 Linux Kernel Crash While Detecting PCI Devices
> Please CC me on any replies.
>
> Hi, I am responsible for maintaining a pre-boot Linux environment, for
> which we use a 2.6.7 linux kernel, booted with the freeloader boot
> loader. Our environment works well on most systems, but on this
> particular model of laptop the kernel crashes before I get a shell
> prompt. From the stack trace, it appears to be crashing during the PCI
> device detection. The root filesystem is loaded into a ramdisk. The
> crash doesn't always reproduce, and I'm not sure what changes that it
> does or does not reproduce. But I see the crash on more than 50% of the
> reboots.
>
> Oops output from ksymoops:
> Unable to handle kernel NULL pointer dereference at virtual address
> 00000008
> c015f846
> *pde = 00000000
> Oops: 0000 [#1]
> CPU: 0
> EIP: 0060:[<c015f846>] Not tainted
> Using defaults from ksymoops -t elf32-i386 -a i386
> EFLAGS: 00010246 (2.6.7)
> eax: 0000000f ebx: df7ab1b8 ecx: c0270970 edx: 00007782
> esi: df7ab178 edi: 00000000 ebp: c0276554 esp: df775ef8
> ds: 007b es: 007b ss: 0068
> Stack: c024ade6 df7ab1b8 df7ab178 df7ab378 df602c00 c019045f 00000000
> c0276554
> c01733b5 df7ab1f0 c0276554 df7ab1f0 df7ab238 c024e1d6 00000000
> 00000009
> df602c00 df7ab378 00000009 00000001 c01734f4 df7ab378 df602c00
> 00000009
> Call Trace:
> [<c019045f>] [<c01733b5>] [<c01734f4>] [<c0173b6c>] [<c0173cb9>]
> [<c023b34
> Code: 8b 47 08 5e 8d 48 68 ff 48 68 0f 88 64 01 00 00 8b 5d 00 53
>
>
> >>EIP; c015f846 <sysfs_add_file+16/a0> <=====
>
> >>ebx; df7ab1b8 <pg0+1f4e51b8/3fd38000>
> >>ecx; c0270970 <console_sem+0/10>
> >>esi; df7ab178 <pg0+1f4e5178/3fd38000>
> >>ebp; c0276554 <class_device_attr_cpuaffinity+0/14>
> >>esp; df775ef8 <pg0+1f4afef8/3fd38000>
>
> Trace; c019045f <class_device_create_file+1f/30>
> Trace; c01733b5 <pci_alloc_child_bus+75/c0>
> Trace; c01734f4 <pci_scan_bridge+b4/200>
> Trace; c0173b6c <pci_scan_child_bus+8c/a0>
> Trace; c0173cb9 <pci_scan_bus_parented+119/140>
>
> Code; c015f846 <sysfs_add_file+16/a0>
> 00000000 <_EIP>:
> Code; c015f846 <sysfs_add_file+16/a0> <=====
> 0: 8b 47 08 mov 0x8(%edi),%eax <=====
> Code; c015f849 <sysfs_add_file+19/a0>
> 3: 5e pop %esi
> Code; c015f84a <sysfs_add_file+1a/a0>
> 4: 8d 48 68 lea 0x68(%eax),%ecx
> Code; c015f84d <sysfs_add_file+1d/a0>
> 7: ff 48 68 decl 0x68(%eax)
> Code; c015f850 <sysfs_add_file+20/a0>
> a: 0f 88 64 01 00 00 js 174 <_EIP+0x174>
> Code; c015f856 <sysfs_add_file+26/a0>
> 10: 8b 5d 00 mov 0x0(%ebp),%ebx
> Code; c015f859 <sysfs_add_file+29/a0>
> 13: 53 push %ebx
>
> <0>Kernel panic: Attempted to kill init!
>
>
>
> Output from lspci -vvv: (Note: lspci seemed to be stuck in an infinite
> loop, printing the last two lines over and over)
> 00:00.0 Class f000: 0001:0000 (rev c3) (prog-if e2)
> Subsystem: 69d5:f000
> Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV+ VGASnoop-
> ParErr+ Stepping+ SERR+ FastB2B-
> Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
> <TAbort+ <MAbort+ >SERR+ <PERR+
> Latency: 105 (60000ns max), cache line size d5
> Interrupt: pin (c) routed to IRQ 0
> BIST is running
> Region 0: I/O ports at <ignored>
> Region 1: Memory at <ignored> (64-bit, non-prefetchable)
> [disabled]
> Region 3: I/O ports at <ignored>
> Region 4: Memory at <ignored> (64-bit, prefetchable) [disabled]
> Expansion ROM at f0006800 [disabled] [size=2K]
>
> 00:0d.0 Class c024: 0068:24cf (rev 60) (prog-if cf)
> Subsystem: 1c24:44c7
> Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop-
> ParErr+ Stepping+ SERR+ FastB2B+
> Status: Cap+ 66Mhz- UDF+ FastB2B+ ParErr- DEVSEL=fast >TAbort+
> <TAbort- <MAbort+ >SERR+ <PERR-
> Interrupt: pin ,C (Brouted to IRQ 0
> Region 0: Memory at <ignored> (32-bit, non-prefetchable)
> [disabled]
> Region 1: Memory at <ignored> (low-1M, prefetchable) [disabled]
> Region 2: Memory at <ignored> (low-1M, non-prefetchable)
> [disabled]
> Region 3: I/O ports at <ignored> [disabled]
> Region 4: I/O ports at <ignored> [disabled]
> Region 5: Memory at <ignored> (type 3, non-prefetchable)
> [disabled]
> Expansion ROM at <unassigned> [disabled] [size=2K]
>
> 00:0e.0 Class 27bc: 6ce9:ffff (prog-if 8d)
> Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV+ VGASnoop+
> ParErr+ Stepping+ SERR+ FastB2B-
> Status: Cap+ 66Mhz+ UDF+ FastB2B- ParErr- DEVSEL=?? >TAbort-
> <TAbort- <MAbort+ >SERR- <PERR-
> Latency: 0
> Region 0: I/O ports at <ignored>
> Region 1: Memory at <ignored> (32-bit, non-prefetchable)
> Region 2: Memory at <ignored> (32-bit, non-prefetchable)
> Region 3: Memory at <ignored> (32-bit, non-prefetchable)
> Region 4: Memory at <ignored> (32-bit, non-prefetchable)
> Region 5: I/O ports at <ignored>
> Expansion ROM at 0001f800 [disabled] [size=2K]
>
> 00:0f.0 Class 26b4: c483:e910 (rev 90) (prog-if 8d)
> Subsystem: 748d:0026
> Control: I/O- Mem- BusMaster+ SpecCycle+ MemWINV+ VGASnoop+
> ParErr- Stepping- SERR+ FastB2B+
> Status: Cap+ 66Mhz+ UDF+ FastB2B+ ParErr+ DEVSEL=?? >TAbort+
> <TAbort+ <MAbort+ >SERR+ <PERR+
> Latency: 0 (34750ns min, 31000ns max)
> Interrupt: pin P routed to IRQ 0
> Region 0: I/O ports at <ignored> [disabled]
> Region 1: Memory at <ignored> (32-bit, non-prefetchable)
> [disabled]
> Region 2: I/O ports at <ignored> [disabled]
> Region 3: Memory at <ignored> (64-bit, non-prefetchable)
> [disabled]
> Region 5: Memory at <ignored> (32-bit, prefetchable) [disabled]
> Expansion ROM at e000b800 [disabled] [size=2K]
> Capabilities: [fc] #c0 [c8a1]
> Capabilities: [c0] #e8 [f9d4]
> Capabilities: [d8] #85 [2274]
> Capabilities: [c0] #e8 [f9d4]
> Capabilities: [d8] #85 [2274]
> Capabilities: [c0] #e8 [f9d4]
> Capabilities: [d8] #85 [2274]
> Capabilities: [c0] #e8 [f9d4]
> Capabilities: [d8] #85 [2274]
> Capabilities: [c0] #e8 [f9d4]
> Capabilities: [d8] #85 [2274]
> Capabilities: [c0] #e8 [f9d4]
> Capabilities: [d8] #85 [2274]
> C
>
> Listing of /proc/cpuinfo:
> processor : 0
> vendor_id : GenuineIntel
> cpu family : 6
> model : 13
> model name : Intel(R) Pentium(R) M processor 1.73GHz
> stepping : 6
> cpu MHz : 1734.122
> cache size : 64 KB
> fdiv_bug : no
> hlt_bug : no
> f00f_bug : no
> coma_bug : no
> fpu : yes
> fpu_exception : yes
> cpuid level : 2
> wp : yes
> flags : fpu vme de pse tsc msr mce cx8 apic sep mtrr pge mca
> cmov pat clflush dts acpi mmx fxsr sse sse2 ss tm pbe tm2 est
> bogomips : 3416.06
>
>
> Listing of /proc/ioports and /proc/iomem:
> 0000-001f : dma1
> 0020-0021 : pic1
> 0040-005f : timer
> 0060-006f : keyboard
> 0080-008f : dma page reg
> 00a0-00a1 : pic2
> 00c0-00df : dma2
> 00f0-00ff : fpu
> 01f0-01f7 : ide0
> 03c0-03df : vga+
> 03f6-03f6 : ide0
> c000-efff : PCI Bus #4d
>
> 00000000-0009fbff : System RAM
> 0009fc00-0009ffff : reserved
> 000a0000-000bffff : Video RAM area
> 000c0000-000c7fff : Video ROM
> 000d0000-000d0fff : Adapter ROM
> 000d1000-000d2fff : Adapter ROM
> 000f0000-000fffff : System ROM
> 00100000-1f7cffff : System RAM
> 00100000-0023de35 : Kernel code
> 0023de36-0028a3ff : Kernel data
> 1f7d0000-1f7efbff : reserved
> 1f7efc00-1f7fafff : ACPI Non-volatile Storage
> 1f7fb000-1f7fffff : reserved
> 40800000-8b6fffff : PCI Bus #28
> e0000000-efffffff : reserved
> fec00000-fec01fff : reserved
> fed20000-fed9afff : reserved
> feda0000-fedbffff : reserved
> ffb00000-ffbfffff : reserved
> fff00000-ffffffff : reserved
>
> I don't have /proc/scsi/scsi on my system, nor /proc/modules
>
> Thank you,
> John
> -
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--

Jonathan Sambrook
Software Developer
Designer Servers
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Next message: Peter Osterlund: "Re: Packet writing problems"
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