Hi all,
I am running RT-Linux2.0 on linux kernel 2.2.13. While the Redhat
SMP kernel 2.2.10smp boots and works perfectly OK, I am getting some
error messages while booting AND running the RT-Linux system. It gets
locked sometimes with the message " Stuck on TLB IPI wait (CPU #0) ".
The portion of /var/log/messages file showing some error lines is
appended (please observe the lines between the lines commented by
/////////////) The error reads like "Unable to handle kernel NULL
pointer dereference at virtual address 00000000" Can someone please tell
whats wrong with the kernel.
Thanx in anticipation,
Surya.
=======================================================================
....
....
....
Feb 18 05:59:58 localhost kernel: ...........................done.
Feb 18 05:59:58 localhost kernel: RTL started
///////////////////////watch the lines
below/////////////////////////////
Feb 18 05:59:58 localhost kernel: Unable to handle kernel NULL pointer
dereference at virtual address 00000000
Feb 18 05:59:58 localhost kernel: current->tss.cr3 = 00101000,%cr3 =
00101000
Feb 18 05:59:58 localhost kernel: *pde = 00000000
Feb 18 05:59:58 localhost kernel: Oops: 0002
////////////////////////////////////////////////////////////////////////
Feb 18 05:59:58 localhost kernel: CPU: 12
Feb 18 05:59:58 localhost kernel: EIP: 0010:[<00000000>]
Feb 18 05:59:58 localhost kernel: EFLAGS: 00010002
Feb 18 05:59:58 localhost kernel: eax: 00000000 ebx: 0000000c
ecx:c7ffa000 edx: 00000018
Feb 18 05:59:58 localhost kernel: esi: 00000041 edi: c7ffbf7c ebp:
c7ffbf74 esp: c7ffbf5c
Feb 18 05:59:58 localhost kernel: ds: 0018 es: 0018 ss:0018
Feb 18 05:59:58 localhost kernel: Process swapper (pid: 0, process nr:
1, stackpage=c7ffb000)
Feb 18 05:59:58 localhost kernel: Stack: c7ffa000 c7ffa000 c023b4c0
00000041 PCI: PCI BIOS revision 2.10 entry at 0xfd9a1
Feb 18 05:59:58 localhost kernel: c7ffbf90 PCI: Using configuration type
1
Feb 18 05:59:58 localhost kernel: 00000000 PCI: Probing PCI hardware
Feb 18 05:59:58 localhost kernel: 00000000 c010942c
Feb 18 05:59:58 localhost kernel: c7ffa000 c7ffa000 00000002
c7ffa000 c023b4c0 00000000 00000600 00000018
Feb 18 05:59:58 localhost kernel: 00000018 00000041c0106245
00000010 00$Feb 18 05:59:58 localhost kernel: Call
Trace:[common_smp_interrupt+24/48] [cpu_idle+61/80] [do_IRQ+69/72]
[rtl_intercept+116/424] [common_interrupt+24/48]
/////////////////////again watch the lines below////////////////////////
Feb 18 05:59:58 localhost kernel: Code: <1>Unable to handle kernel NULL
pointer dereference at virtual address 00000000
Feb 18 05:59:58 localhost kernel:current->tss.cr3 = 00101000, %cr3 =
00101000
Feb 18 05:59:58 localhost kernel: *pde = 00000000
////////////////////////////////////////////////////////////////////////
Feb 18 05:59:58 localhost kernel: PCI->APIC IRQ transform: (B0,I6,P0)
->18
Feb 18 05:59:58 localhost kernel: PCI->APIC IRQ transform: (B0,I9,P0)
->17
Feb 18 05:59:58 localhost kernel: PCI->APIC IRQ transform: (B0,I15,P0)
->17
Feb 18 05:59:58 localhost kernel: PCI: 00:00 [8086/1237]: Passive
release enable (00)
Feb 18 05:59:58 localhost kernel: Linux NET4.0 for Linux 2.2
Feb 18 05:59:58 localhost kernel: Based upon Swansea University Computer
Society NET3.039
Feb 18 05:59:58 localhost kernel: NET4: Unix domain sockets 1.0 for
Linux NET4.0.
Feb 18 05:59:58 localhost kernel: NET4: Linux TCP/IP 1.0 for NET4.0
Feb 18 05:59:58 localhost kernel: IP Protocols: ICMP, UDP, TCP
Feb 18 05:59:58 localhost kernel: Starting kswapd v 1.5
Feb 18 05:59:58 localhost kernel: Detected PS/2 Mouse Port.
/////////////////////////////////////////////////////////////////////
Feb 18 05:59:58 localhost kernel: Unable to handle kernel NULL pointer
dereference at virtual address 00000000
Feb 18 05:59:58 localhost kernel: current->tss.cr3 = 00101000, %cr3 =
00101000
Feb 18 05:59:58 localhost kernel: *pde = 00000000
/////////////////////////////////////////////////////////////////////
Feb 18 05:59:58 localhost kernel: Serial driver version 4.27 with no
serial options enabled
Feb 18 05:59:58 localhost kernel: ttyS00 at 0x03f8 (irq = 4) is a 16550A
Feb 18 05:59:58 localhost kernel: pty: 256 Unix98 ptys configured
...
...
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=======================================================================
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