[plug] Machine Check Exception

bob bob at fots.org.au
Sat Dec 25 22:44:50 WST 2004 

Got a panic this evening and I was hoping someone coud have a look at the 
following syslog dump and perhaps tell me what happened. Is this RAM 
failing? (once again google has failed to provide an anwer by flooding the 
response with blog entries - none of which are worth anything :()

Dec 25 21:40:03 fluff kernel: CPU 0: Machine Check Exception: 
0000000000000004
Dec 25 21:40:03 fluff kernel: Bank 2: b600000000140000 at 003446ff003446ff
Dec 25 21:40:03 fluff kernel: Kernel panic: CPU context corrupt
Dec 25 21:40:03 fluff kernel: bad: scheduling while atomic!
Dec 25 21:40:03 fluff kernel: Call Trace:
Dec 25 21:40:03 fluff kernel:  [schedule+1792/1808] schedule+0x700/0x710
Dec 25 21:40:03 fluff kernel:  [mpage_writepages+332/848] 
mpage_writepages+0x14c/0x350
Dec 25 21:40:03 fluff kernel:  [io_schedule+40/64] io_schedule+0x28/0x40
Dec 25 21:40:03 fluff kernel:  [wait_on_page_bit+181/240] 
wait_on_page_bit+0xb5/0xf0
Dec 25 21:40:03 fluff kernel:  [autoremove_wake_function+0/80] 
autoremove_wake_function+0x0/0x50
Dec 25 21:40:03 fluff kernel:  [autoremove_wake_function+0/80] 
autoremove_wake_function+0x0/0x50
Dec 25 21:40:03 fluff kernel:  [pagevec_lookup_tag+54/64] 
pagevec_lookup_tag+0x36/0x40
Dec 25 21:40:03 fluff kernel:  [wait_on_page_writeback_range+227/288] 
wait_on_page_writeback_range+0xe3/0x120
Dec 25 21:40:03 fluff kernel:  [filemap_fdatawait+30/48] 
filemap_fdatawait+0x1e/0x30
Dec 25 21:40:03 fluff kernel:  [sync_blockdev+57/80] sync_blockdev+0x39/0x50
Dec 25 21:40:03 fluff kernel:  [sync_inodes+55/160] sync_inodes+0x37/0xa0
Dec 25 21:40:03 fluff kernel:  [do_sync+35/144] do_sync+0x23/0x90
Dec 25 21:40:03 fluff kernel:  [sys_sync+15/32] sys_sync+0xf/0x20
Dec 25 21:40:03 fluff kernel:  [panic+274/304] panic+0x112/0x130
Dec 25 21:40:03 fluff kernel:  [intel_machine_check+269/448] 
intel_machine_check+0x10d/0x1c0
Dec 25 21:40:03 fluff kernel:  [intel_machine_check+0/448] 
intel_machine_check+0x0/0x1c0
Dec 25 21:40:03 fluff kernel:  [error_code+45/56] error_code+0x2d/0x38
Dec 25 21:40:03 fluff kernel:  [__pte_chain_free+44/144] 
__pte_chain_free+0x2c/0x90
Dec 25 21:40:03 fluff kernel:  [page_remove_rmap+456/480] 
page_remove_rmap+0x1c8/0x1e0
Dec 25 21:40:03 fluff kernel:  [zap_pte_range+367/720] 
zap_pte_range+0x16f/0x2d0
Dec 25 21:40:03 fluff kernel:  [zap_pmd_range+99/128] 
zap_pmd_range+0x63/0x80
Dec 25 21:40:03 fluff kernel:  [unmap_page_range+83/128] 
unmap_page_range+0x53/0x80
Dec 25 21:40:03 fluff kernel:  [unmap_vmas+214/592] unmap_vmas+0xd6/0x250
Dec 25 21:40:03 fluff kernel:  [exit_mmap+247/592] exit_mmap+0xf7/0x250
Dec 25 21:40:03 fluff kernel:  [mmput+109/160] mmput+0x6d/0xa0
Dec 25 21:40:03 fluff kernel:  [exec_mmap+291/544] exec_mmap+0x123/0x220
Dec 25 21:40:03 fluff kernel:  [flush_old_exec+394/2704] 
flush_old_exec+0x18a/0xa90
Dec 25 21:40:03 fluff kernel:  [kernel_read+78/96] kernel_read+0x4e/0x60
Dec 25 21:40:03 fluff kernel:  [load_elf_binary+689/3072] 
load_elf_binary+0x2b1/0xc00
Dec 25 21:40:03 fluff kernel:  [do_timer+192/208] do_timer+0xc0/0xd0
Dec 25 21:40:03 fluff kernel:  [timer_interrupt+116/368] 
timer_interrupt+0x74/0x170
Dec 25 21:40:03 fluff kernel:  [common_interrupt+24/32] 
common_interrupt+0x18/0x20
Dec 25 21:40:03 fluff kernel:  [copy_strings+465/544] 
copy_strings+0x1d1/0x220
Dec 25 21:40:03 fluff kernel:  [load_elf_binary+0/3072] 
load_elf_binary+0x0/0xc00
Dec 25 21:40:03 fluff kernel:  [search_binary_handler+454/800] 
search_binary_handler+0x1c6/0x320
Dec 25 21:40:03 fluff kernel:  [do_execve+468/640] do_execve+0x1d4/0x280
Dec 25 21:40:03 fluff kernel:  [sys_execve+66/128] sys_execve+0x42/0x80
Dec 25 21:40:03 fluff kernel:  [syscall_call+7/11] syscall_call+0x7/0xb
Dec 25 21:40:03 fluff kernel:
Dec 25 21:40:03 fluff kernel: bad: scheduling while atomic!
Dec 25 21:40:03 fluff kernel: Call Trace:
Dec 25 21:40:03 fluff kernel:  [schedule+1792/1808] schedule+0x700/0x710
Dec 25 21:40:03 fluff kernel:  [io_schedule+40/64] io_schedule+0x28/0x40
Dec 25 21:40:03 fluff kernel:  [wait_on_page_bit+181/240] 
wait_on_page_bit+0xb5/0xf0
Dec 25 21:40:03 fluff kernel:  [autoremove_wake_function+0/80] 
autoremove_wake_function+0x0/0x50
Dec 25 21:40:03 fluff kernel:  [autoremove_wake_function+0/80] 
autoremove_wake_function+0x0/0x50
Dec 25 21:40:03 fluff kernel:  [pagevec_lookup_tag+54/64] 
pagevec_lookup_tag+0x36/0x40
Dec 25 21:40:03 fluff kernel:  [wait_on_page_writeback_range+227/288] 
wait_on_page_writeback_range+0xe3/0x120
Dec 25 21:40:03 fluff kernel:  [filemap_fdatawait+30/48] 
filemap_fdatawait+0x1e/0x30
Dec 25 21:40:03 fluff kernel:  [sync_blockdev+57/80] sync_blockdev+0x39/0x50
Dec 25 21:40:03 fluff kernel:  [sync_inodes+55/160] sync_inodes+0x37/0xa0
Dec 25 21:40:03 fluff kernel:  [do_sync+35/144] do_sync+0x23/0x90
Dec 25 21:40:03 fluff kernel:  [sys_sync+15/32] sys_sync+0xf/0x20
Dec 25 21:40:03 fluff kernel:  [panic+274/304] panic+0x112/0x130
Dec 25 21:40:03 fluff kernel:  [intel_machine_check+269/448] 
intel_machine_check+0x10d/0x1c0
Dec 25 21:40:03 fluff kernel:  [intel_machine_check+0/448] 
intel_machine_check+0x0/0x1c0
Dec 25 21:40:03 fluff kernel:  [error_code+45/56] error_code+0x2d/0x38
Dec 25 21:40:03 fluff kernel:  [__pte_chain_free+44/144] 
__pte_chain_free+0x2c/0x90
Dec 25 21:40:03 fluff kernel:  [page_remove_rmap+456/480] 
page_remove_rmap+0x1c8/0x1e0
Dec 25 21:40:03 fluff kernel:  [zap_pte_range+367/720] 
zap_pte_range+0x16f/0x2d0
Dec 25 21:40:03 fluff kernel:  [zap_pmd_range+99/128] 
zap_pmd_range+0x63/0x80
Dec 25 21:40:03 fluff kernel:  [unmap_page_range+83/128] 
unmap_page_range+0x53/0x80
Dec 25 21:40:03 fluff kernel:  [unmap_vmas+214/592] unmap_vmas+0xd6/0x250
Dec 25 21:40:03 fluff kernel:  [exit_mmap+247/592] exit_mmap+0xf7/0x250
Dec 25 21:40:03 fluff kernel:  [mmput+109/160] mmput+0x6d/0xa0
Dec 25 21:40:03 fluff kernel:  [exec_mmap+291/544] exec_mmap+0x123/0x220
Dec 25 21:40:03 fluff kernel:  [flush_old_exec+394/2704] 
flush_old_exec+0x18a/0xa90
Dec 25 21:40:03 fluff kernel:  [kernel_read+78/96] kernel_read+0x4e/0x60
Dec 25 21:40:03 fluff kernel:  [load_elf_binary+689/3072] 
load_elf_binary+0x2b1/0xc00
Dec 25 21:40:03 fluff kernel:  [do_timer+192/208] do_timer+0xc0/0xd0
Dec 25 21:40:03 fluff kernel:  [timer_interrupt+116/368] 
timer_interrupt+0x74/0x170
Dec 25 21:40:03 fluff kernel:  [common_interrupt+24/32] 
common_interrupt+0x18/0x20
Dec 25 21:40:03 fluff kernel:  [copy_strings+465/544] 
copy_strings+0x1d1/0x220
Dec 25 21:40:03 fluff kernel:  [load_elf_binary+0/3072] 
load_elf_binary+0x0/0xc00
Dec 25 21:40:03 fluff kernel:  [search_binary_handler+454/800] 
search_binary_handler+0x1c6/0x320
Dec 25 21:40:03 fluff kernel:  [do_execve+468/640] do_execve+0x1d4/0x280
Dec 25 21:40:03 fluff kernel:  [sys_execve+66/128] sys_execve+0x42/0x80
Dec 25 21:40:03 fluff kernel:  [syscall_call+7/11] syscall_call+0x7/0xb
Dec 25 21:40:03 fluff kernel:


-- 
An actor's a guy who if you ain't talkin' about him, ain't listening.
		-- Marlon Brando

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