Description of Problem: Version-Release number of selected component (if applicable): Kernel 2.4.9-31smp, as distributed through RedHat errata How Reproducible: Very reproducible Steps to Reproduce: 1. Run dual-cpu machine at high load factor (> 5) 2. Kernel panic will occur--has occurred at least 3 times in 2 months on each of 20 identically configured nodes 3. Actual Results: kswapd shows as <defunct> afterwards. Below is text of kernel dump: Unable to handle kernel paging request at virtual address 0a1a77da printing eip: 0a1a77da *pde = 00000000 Oops: 0000 Kernel 2.4.9-31smp CPU: 0 EIP: 0010:[<0a1a77da>] Tainted: P EFLAGS: 00010202 EIP is at Using_Versions [] 0xa1a77d9 eax: 0a1a77da ebx: d112b040 ecx: d112b050 edx: e0e1e183 esi: f74f62e0 edi: e0e1e183 ebp: fffffff6 esp: c22dbf50 ds: 0018 es: 0018 ss: 0018 Process kswapd (pid: 5, stackpage=c22db000) Stack: c0153d4b d112b040 c211c3a0 c02de878 00000000 c22da000 f74f62f8 f74f62e0 d112b040 c01515eb d112b040 d112b040 c22da000 00000000 c1deb944 00000000 c1eb1250 c1deb944 00000000 c0135c45 00000000 00036a22 000000c0 000000c0 Call Trace: [<c0153d4b>] iput [kernel] 0x3b [<c01515eb>] prune_dcache [kernel] 0x10b [<c0135c45>] page_launder [kernel] 0x955 [<c0151a11>] shrink_dcache_memory [kernel] 0x21 [<c013604b>] do_try_to_free_pages [kernel] 0x1b [<c01360d5>] kswapd [kernel] 0x55 [<c0105000>] stext [kernel] 0x0 [<c0105866>] kernel_thread [kernel] 0x26 [<c0136080>] kswapd [kernel] 0x0 Code: Bad EIP value. Expected Results: Additional Information:
EIP: 0010:[<0a1a77da>] Tainted: P what kernel modules are you using ?
[root@fnd01 /root]# lsmod Module Size Used by Tainted: P autofs 12100 5 (autoclean) nfs 83808 7 (autoclean) lockd 54048 1 (autoclean) [nfs] sunrpc 70032 1 (autoclean) [nfs lockd] e100 61360 1 (autoclean) ipchains 42024 0 usb-uhci 23044 0 (unused) usbcore 54656 1 [usb-uhci]
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