Re: Bug#399113: xen kernel infinite loop processing core dump

[Moritz Möller <m.moeller@bigpoint.com>]

Hi,

same problem here;

- debian etch xen (xen-hypervisor-3.0.3-1-i386,
linux-image-2.6.18-3-xen-686)
- core dumps enabled
- *((char*)0) = 0;

Coredump in /var/log/messages:
Feb  6 16:13:58 moritz-01 kernel: [<c01471d3>] vm_normal_page+0x9f/0xb7
Feb  6 16:13:58 moritz-01 kernel: [<c0147e50>] follow_page+0x10c/0x19e
Feb  6 16:13:58 moritz-01 kernel: [<c0148165>] 
Feb  6 16:13:58 moritz-01 kernel: get_user_pages+0x283/0x2ce
Feb  6 16:13:58 moritz-01 kernel: [<c017e789>] elf_core_dump+0x730/0x90f
Feb  6 16:13:58 moritz-01 kernel: [<c0161c97>] do_coredump+0x157/0x1a8
Feb  6 16:13:58 moritz-01 kernel: [<c0123205>] collect_signal+0x8d/0xd7
[...]
Feb  6 16:13:59 moritz-01 kernel: [<c0124a6b>]
get_signal_to_deliver+0x26d/0x29e
Feb  6 16:13:59 moritz-01 kernel: [<c0110db5>] do_page_fault+0x0/0x670
Feb  6 16:13:59 moritz-01 kernel: [<c01044ab>] do_signal+0x50/0x105
Feb  6 16:13:59 moritz-01 kernel: [<c0115492>] __wake_up+0x29/0x3c
Feb  6 16:13:59 moritz-01 kernel: [<c0115492>] __wake_up+0x29/0x3c
Feb  6 16:13:59 moritz-01 kernel: [<c01f95bc>] tty_write+0x1cc/0x1d8
Feb  6 16:13:59 moritz-01 kernel: [<c0157d1a>] vfs_write+0x116/0x151
Feb  6 16:13:59 moritz-01 kernel: [<c011141c>] do_page_fault+0x667/0x670
Feb  6 16:13:59 moritz-01 kernel: [<c0110db5>] do_page_fault+0x0/0x670
Feb  6 16:13:59 moritz-01 kernel: [<c010458a>] do_notify_resume+0x2a/0x38
Feb  6 16:13:59 moritz-01 kernel: [<c010478d>] work_notifysig+0x13/0x1a
Feb  6 16:13:59 moritz-01 kernel: [<c01471d3>] vm_normal_page+0x9f/0xb7
Feb  6 16:13:59 moritz-01 kernel: [<c0147e50>] follow_page+0x10c/0x19e
Feb  6 16:13:59 moritz-01 kernel: [<c0148165>] get_user_pages+0x283/0x2ce
Feb  6 16:13:59 moritz-01 kernel: [<c017e789>] elf_core_dump+0x730/0x90f
Feb  6 16:13:59 moritz-01 kernel: [<c0161c97>] do_coredump+0x157/0x1a8
Feb  6 16:13:59 moritz-01 kernel: [<c0123205>] collect_signal+0x8d/0xd7
Feb  6 16:13:59 moritz-01 kernel: [<c01232be>] __dequeue_signal+0x6f/0x76
Feb  6 16:13:59 moritz-01 kernel: [<c01232da>] dequeue_signal+0x15/0x9c
Feb  6 16:13:59 moritz-01 kernel: [<c0124a6b>]
get_signal_to_deliver+0x26d/0x29e
Feb  6 16:13:59 moritz-01 kernel: [<c0110db5>] do_page_fault+0x0/0x670
Feb  6 16:13:59 moritz-01 kernel: [<c01044ab>] do_signal+0x50/0x105
Feb  6 16:13:59 moritz-01 kernel: [<c0115492>] __wake_up+0x29/0x3c
Feb  6 16:13:59 moritz-01 kernel: [<c0115492>] __wake_up+0x29/0x3c

Regards,

Moritz