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Subjectkernel meltdown
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Hi there,
I am hoping someone can help me. This morning one of our web servers crapped itself and I don't know why. It's running RedHat 7.2 kernel version 2.4.9-31smp. I couldn't login from the console so I had to reset it. When it came back up it was fine. This is what I am seeing in the messages log:


Jun 7 02:57:43 web02 kernel: kernel BUG at slab.c:1767!
Jun 7 02:57:43 web02 kernel: invalid operand: 0000
Jun 7 02:57:43 web02 kernel: Kernel 2.4.9-31smp
Jun 7 02:57:43 web02 kernel: CPU: 0
Jun 7 02:57:43 web02 kernel: EIP: 0010:[kmem_cache_reap+504/912] Not tainted
Jun 7 02:57:43 web02 kernel: EIP: 0010:[<c0133d08>] Not tainted
Jun 7 02:57:43 web02 kernel: EFLAGS: 00010092
Jun 7 02:57:43 web02 kernel: EIP is at kmem_cache_reap [kernel] 0x1f8
Jun 7 02:57:43 web02 kernel: eax: 0000001b ebx: e2c34000 ecx: c02db9e4 edx: 00003906
Jun 7 02:57:43 web02 kernel: esi: c1b8f9e8 edi: c1b8f9f8 ebp: 00000000 esp: e3fedf8c
Jun 7 02:57:43 web02 kernel: ds: 0018 es: 0018 ss: 0018
Jun 7 02:57:43 web02 kernel: Process kswapd (pid: 5, stackpage=e3fed000)
Jun 7 02:57:43 web02 kernel: Stack: c024f253 000006e7 00000d80 c1b8f9f8 c1b8f9f0 00000183 e3f9d000 0000000a
Jun 7 02:57:43 web02 kernel: 00000000 00000000 00000000 00000183 000000c0 000000c0 0008e000 c0136076
Jun 7 02:57:43 web02 kernel: 000000c0 e3fec000 00000006 c01360d5 000000c0 00000000 00010f00 c1d9ffb8
Jun 7 02:57:43 web02 kernel: Call Trace: [call_spurious_interrupt+130654/156203] .rodata.str1.1 [kernel] 0x2a8e
Jun 7 02:57:43 web02 kernel: Call Trace: [<c024f253>] .rodata.str1.1 [kernel] 0x2a8e
Jun 7 02:57:43 web02 kernel: [do_try_to_free_pages+70/80] do_try_to_free_pages [kernel] 0x46
Jun 7 02:57:43 web02 kernel: [<c0136076>] do_try_to_free_pages [kernel] 0x46
Jun 7 02:57:43 web02 kernel: [kswapd+85/240] kswapd [kernel] 0x55
Jun 7 02:57:43 web02 kernel: [<c01360d5>] kswapd [kernel] 0x55
Jun 7 02:57:43 web02 kernel: [_stext+0/96] stext [kernel] 0x0
Jun 7 02:57:43 web02 kernel: [<c0105000>] stext [kernel] 0x0
Jun 7 02:57:43 web02 kernel: [kernel_thread+38/48] kernel_thread [kernel] 0x26
Jun 7 02:57:43 web02 kernel: [<c0105866>] kernel_thread [kernel] 0x26
Jun 7 02:57:43 web02 kernel: [kswapd+0/240] kswapd [kernel] 0x0
Jun 7 02:57:43 web02 kernel: [<c0136080>] kswapd [kernel] 0x0
Jun 7 02:57:43 web02 kernel:
Jun 7 02:57:43 web02 kernel:
Jun 7 02:57:43 web02 kernel: Code: 0f 0b 58 5a 8b 03 45 39 f8 75 dd 8b 4e 2c 89 ea 8b 7e 4c d3


I have searched on google for some of these messages but I couldn't find anything helpful. Any help or direction would be apprecaited.

I am not subscribed to this list so email to me directly would be great. If I am mailing to the wrong list my apologies.

Thanks so much all!

-anna
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