Description of problem: Kernel crashes on reboot on a Dell Dimension 2400. Outputs large stack trace, then kernel panics. Possible ACPI bug suspected. Version-Release number of selected component (if applicable): 2.6.9-34.EL #1 How reproducible: Always Steps to Reproduce: 1. Reboot Actual results: esi: c14da980 edi: 00995ff4 ebp: dd9c5000 esp: dd9c5a0 ds: 007b es: 007b ss: 0068 Process reboot (pid: 3743, threadinfo=dd9c5000 task=d5897220 Stack: df6bd844 c0377f08 c024d87a dd9c5000 01234567 c0131c43 c102e6a0 00928a80 d67ebba0 00000001 00928a80 d67ebba0 c0158a3a 00000000 de90a4a0 df265000 df0018b0 d5897220 d67ebba0 c011a9a5 00000000 Call Trace: [<c024d87a>] device_shutdown+0x55/0x72 [<c0131c43>] sys_reboot+0x16d/0x3e1 [<c02edd88>] handle_mm_fault+0xd5/0x1fd [<c02b6a0b>] do_page_fault+0x1ac/0x4dc [<c018565c>] udp_ioctl+0x0/0x19d [<c0187876>] dev_ioctl+0x42/0x48c [<c0181ca7>] destroy_inode+0x3d/0x4c [<c0187876>] iput+0x5f/0x61 [<c0181ca7>] dput+0x33/0x423 [<c01699c6>] __fput+0xc9/0xee [<c016825a>] flip_close+0x59/0x5f [<c0311443>] syscall_call+0x7/0xb Code: a8 0c 74 07 c6 83 a3 00 00 00 30 f6 86 f0 01 00 00 01 74 07 c6 83 a0 00 00 b6 83 83 00 00 00 0c 04 88 83 83 83 00 00 <0)Fatal exception: panic in 5 seconds Kernel panic - not syncing: Fatal exception Expected results: Clean reboot without stack trace debug or kernel panic Additional info:
How is this system being rebooted? Just running the 'reboot' command? Can someone try each of these boot args, one at a time, and see if reboot starts working properly with any of them: reboot=w reboot=c reboot=b reboot=h
It was due to a buggy APIC controller but seems to have been fixed in 2.6.16 or so. I do not have that machine anymore unfortunately.
Closing out as wontfix as we do not have access to any hw exhibiting the problem.