From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; fr; rv:1.4.1) Gecko/20031114 Galeon/1.3.13 Description of problem: Unable to handle kernel NULL pointer dereference at virtual address 00000028 printing eip: c017a56f *pde = 1b60b067 Oops: 0000 [#1] CPU: 0 EIP: 0060:[<c017a56f>] Not tainted EFLAGS: 00010282 EIP is at try_to_release_page+0x2f/0x60 eax: 00000000 ebx: 00000000 ecx: c1337688 edx: c8524204 esi: 000000d0 edi: 00000000 ebp: c8524204 esp: dfdcfd6c ds: 007b es: 007b ss: 0068 Process kswapd0 (pid: 7, threadinfo=dfdce000 task=c1564dc0) Stack: dfdcfe64 c1337688 c015a9c1 00000000 00000010 dfdcfe4c 00000000 00000001 c010e795 00000000 00000001 0000001f 00000000 000000d0 c146c278 c1475580 00000000 00000000 00000000 00000020 00000001 00000000 00000000 00000001 Call Trace: [<c015a9c1>] shrink_list+0x721/0x8c0 [<c010e795>] do_IRQ+0x205/0x340 [<c015ad66>] shrink_cache+0x206/0x5f0 [<c015bbc1>] shrink_zone+0x71/0xa0 [<c015bfb2>] balance_pgdat+0x1a2/0x230 [<c015c148>] kswapd+0x108/0x120 [<c0126850>] autoremove_wake_function+0x0/0x40 [<c0126850>] autoremove_wake_function+0x0/0x40 [<c015c040>] kswapd+0x0/0x120 [<c0109295>] kernel_thread_helper+0x5/0x10 Code: 8b 58 28 85 db 75 11 8b 1c 24 89 c8 8b 74 24 04 83 c4 08 e9 Bad page state at free_hot_cold_page flags:0x20010014 mapping:00000000 mapped:1 count:0 Backtrace: Call Trace: [<c014fcb5>] bad_page+0x65/0x90 [<c015079c>] free_hot_cold_page+0x6c/0xf0 [<c015f1bc>] zap_pte_range+0x18c/0x1d0 [<c0123751>] schedule+0x391/0x730 [<c015f243>] zap_pmd_range+0x43/0x60 [<c015f2a2>] unmap_page_range+0x42/0x80 [<c015f3d7>] unmap_vmas+0xf7/0x360 [<c016254e>] handle_mm_fault+0x11e/0x2d0 [<c0165596>] exit_mmap+0xb6/0x280 [<c025b1d6>] exit_io_context+0x36/0x90 [<c0126bfb>] mmput+0x9b/0x100 [<c012cc60>] do_exit+0x1a0/0x880 [<c0164b8a>] unmap_vma_list+0x1a/0x30 [<c016513d>] do_munmap+0x1ad/0x280 [<c012d3ea>] do_group_exit+0x3a/0x1f0 [<c011f9a0>] do_page_fault+0x0/0x4cc [<c010c49f>] syscall_call+0x7/0xb Trying to fix it up, but a reboot is needed I wasnt "really" using the system when it paniced.. I dont know what really happened. X was started (no dri), screen was off. The system was not responding anymore to ssh requests and i had to hard reboot it. Version-Release number of selected component (if applicable): kernel-2.6.2-1.81 How reproducible: Couldn't Reproduce Steps to Reproduce: Dont know. I'm not clueful enough.
Does this occur with test3 also ?
I did have an hardware memory problem with this system, but i cant remember if i removed the bad memory before or after this kernel.. But, anyway, it doesnt happen anymore with 2.6.[34] kernels (didnt upgraded this system to FC2T3 yet). I think we can close the bug..