Now, I've hit some real problems. I've managed to crash the host twice
within a short period of time. I captured the messages from a serial
console the second time (it seems that you only need to generate some
load to trigger this bug - I was compiling some code with gcc):
Host: Linux x86_64 2.6.11.8
Guest: 2.6.12-rc3-uml
general protection fault: 0000 [1]
CPU 0
Pid: 26926, comm: kernel-4 Not tainted 2.6.11.8
RIP: 0010:[<ffffffff8010ca47>] <ffffffff8010ca47>{__switch_to+311}
RSP: 0018:ffff8100a7635d48 EFLAGS: 00010016
RAX: 0000c8e816000002 RBX: ffff8100b895f320 RCX: 00000000c0000102
RDX: 000000000000c8e8 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff810090db3a00 R09: 0000000000006933
R10: 0000000000000000 R11: 0000000000000202 R12: ffff8100a827b890
R13: ffff8100b895f010 R14: ffff8100a827b580 R15: ffff8100a827b7f8
FS: 000000006025212c(0000) GS:ffffffff80785a00(0000)
knlGS:0000000000000d7e
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 000000006880d010 CR3: 00000000a2321000 CR4: 00000000000006e0
Process kernel-4 (pid: 26926, threadinfo ffff810060884000, task
ffff8100a827b580)
Stack: ffff8100dc37e180 ffff8100b895f010 ffffffff806b6d50
ffff8100b895f010
000003595b049ed6 ffffffff804f4de4 ffff8100a7635de8
0000000000000086
0000007500000020 ffff8100b895f010
Call Trace:<ffffffff804f4de4>{thread_return+0}
<ffffffff8013cb08>{ptrace_stop+280}
<ffffffff8013cde6>{get_signal_to_deliver+358}
<ffffffff8010d4e3>{do_signal+163}
<ffffffff8010e905>{error_exit+0}
<ffffffff8010de67>{sys_rt_sigreturn+535}
<ffffffff8010dee9>{sys_rt_sigreturn+665}
<ffffffff8010e2b6>{int_signal+18}
Code: 0f 30 66 41 89 6c 24 2e 65 48 8b 04 25 20 00 00 00 49 89 44
RIP <ffffffff8010ca47>{__switch_to+311} RSP <ffff8100a7635d48>
<0>general protection fault: 0000 [2]
CPU 0
Pid: 3, comm: events/0 Not tainted 2.6.11.8
RIP: 0010:[<ffffffff8010ca47>] <ffffffff8010ca47>{__switch_to+311}
RSP: 0018:ffff8100a7635d48 EFLAGS: 00010016
RAX: 0000c8e816000002 RBX: ffff8100b895f320 RCX: 00000000c0000102
RDX: 000000000000c8e8 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000000d
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8100fbf909f0
R13: ffff8100b895f010 R14: ffff8100fbf906e0 R15: ffff8100fbf90950
FS: 000000006025212c(0000) GS:ffffffff80785a00(0000)
knlGS:0000000000000d7e
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 000000006880d010 CR3: 00000000a2321000 CR4: 00000000000006e0
Process events/0 (pid: 3, threadinfo ffff8100fbfaa000, task
ffff8100fbf906e0)
Stack: ffff8100dc37e180 ffff8100b895f010 ffffffff806b6d50
ffff8100b895f010
00000359c1aeb8da ffffffff804f4de4 ffff8100a7635de8
0000000000000086
0000007500000020 ffff8100b895f010
Call Trace:<ffffffff804f4de4>{thread_return+0}
<ffffffff8013cb08>{ptrace_stop+280}
<ffffffff8013cde6>{get_signal_to_deliver+358}
<ffffffff8010d4e3>{do_signal+163}
<ffffffff8010e905>{error_exit+0}
<ffffffff8010de67>{sys_rt_sigreturn+535}
<ffffffff8010dee9>{sys_rt_sigreturn+665}
<ffffffff8010e2b6>{int_signal+18}
Code: 0f 30 66 41 89 6c 24 2e 65 48 8b 04 25 20 00 00 00 49 89 44
RIP <ffffffff8010ca47>{__switch_to+311} RSP <ffff8100a7635d48>
<1>Unable to handle kernel NULL pointer dereference at 0000000000000278
RIP:
<ffffffff804f4c99>{schedule+873}
PGD c8175067 PUD 31aea067 PMD 0
Oops: 0002 [3]
CPU 0
Pid: 3, comm: events/0 Not tainted 2.6.11.8
RIP: 0010:[<ffffffff804f4c99>] <ffffffff804f4c99>{schedule+873}
RSP: 0018:ffff8100a7635b68 EFLAGS: 00010007
RAX: 0000000002d3ca44 RBX: 0000000000000000 RCX: ffff810090db3a00
RDX: 000000003b9ac880 RSI: ffff8100b895f010 RDI: ffff8100fbf906e0
RBP: ffff8100a7635bc8 R08: 0000000000000000 R09: 000000000000000d
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff806b6d50
R13: ffff8100b895f010 R14: 0000035a27fb7d77 R15: ffff8100fbf90950
FS: 000000006025212c(0000) GS:ffffffff80785a00(0000)
knlGS:0000000000000d7e
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000278 CR3: 00000000a2321000 CR4: 00000000000006e0
Process events/0 (pid: 3, threadinfo ffff8100fbfaa000, task
ffff8100fbf906e0)
Stack: 0000007300000000 ffff8100fbf906e0 0000000000000180
ffff8100b895f010
ffffffff806a6fc0 0000000000000000 ffff8100fbf906e0
ffff8100a7635be8
ffff8100fbf906e0 ffff8100fbf91440
Call Trace:<ffffffff801347a7>{do_exit+2535} <ffffffff8010f5ac>{oops_end
+28}
<ffffffff8010f6e5>{die+69}
<ffffffff801100fe>{do_general_protection+270}
<ffffffff8010e905>{error_exit+0} <ffffffff8010ca47>{__switch_to
+311}
<ffffffff804f4de4>{thread_return+0}
<ffffffff8013cb08>{ptrace_stop+280}
<ffffffff8013cde6>{get_signal_to_deliver+358}
<ffffffff8010d4e3>{do_signal+163}
<ffffffff8010e905>{error_exit+0}
<ffffffff8010de67>{sys_rt_sigreturn+535}
<ffffffff8010dee9>{sys_rt_sigreturn+665}
<ffffffff8010e2b6>{int_signal+18}
Code: 0f ba b3 78 02 00 00 00 0f ba a9 78 02 00 00 00 48 8b 51 38
RIP <ffffffff804f4c99>{schedule+873} RSP <ffff8100a7635b68>
CR2: 0000000000000278
<1>Unable to handle kernel NULL pointer dereference at 0000000000000000
RIP:
<ffffffff8012e134>{dequeue_task+4}
PGD c8175067 PUD 31aea067 PMD 0
Oops: 0002 [4]
CPU 0
Pid: 3, comm: events/0 Not tainted 2.6.11.8
RIP: 0010:[<ffffffff8012e134>] <ffffffff8012e134>{dequeue_task+4}
RSP: 0018:ffff8100a76358c8 EFLAGS: 00010006
RAX: 0000000000000020 RBX: ffff8100fbf906e0 RCX: ffff8100fbf90718
RDX: ffff8100fbf906e0 RSI: 0000000000000000 RDI: ffff8100fbf906e0
RBP: ffff8100a76358d8 R08: 0000000000000000 R09: 000000000000000d
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8100fbf906e0
R13: ffff8100fbf91440 R14: 0000035aa7f554c4 R15: ffff8100fbf90950
FS: 000000006025212c(0000) GS:ffffffff80785a00(0000)
knlGS:0000000000000d7e
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000000 CR3: 00000000a2321000 CR4: 00000000000006e0
Process events/0 (pid: 3, threadinfo ffff8100fbfaa000, task
ffff8100fbf906e0)
Stack: ffffffff8012e3d4 ffff8100a7635968 ffff8100a7635948
ffffffff804f4ae2
0000000000000000 ffff8100fbf906e0 00000000069f6bc7
ffffffff801301bf
00000000ffffff01 0000000000000000
Call Trace:<ffffffff8012e3d4>{deactivate_task+20}
<ffffffff804f4ae2>{schedule+434}
<ffffffff801301bf>{mm_release+47} <ffffffff801347a7>{do_exit
+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8011f4cf>{do_page_fault
+1855}
<ffffffff8010e905>{error_exit+0} <ffffffff804f4c99>{schedule+873}
<ffffffff804f4ae2>{schedule+434} <ffffffff801347a7>{do_exit+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8010f6e5>{die+69}
<ffffffff801100fe>{do_general_protection+270}
<ffffffff8010e905>{error_exit+0}
<ffffffff8010ca47>{__switch_to+311}
<ffffffff804f4de4>{thread_return+0}
<ffffffff8013cb08>{ptrace_stop+280}
<ffffffff8013cde6>{get_signal_to_deliver+358}
<ffffffff8010d4e3>{do_signal+163} <ffffffff8010e905>{error_exit
+0}
<ffffffff8010de67>{sys_rt_sigreturn+535}
<ffffffff8010dee9>{sys_rt_sigreturn+665}
<ffffffff8010e2b6>{int_signal+18}
Code: ff 0e 55 48 8b 47 38 48 8b 51 08 48 89 e5 48 89 02 48 89 50
RIP <ffffffff8012e134>{dequeue_task+4} RSP <ffff8100a76358c8>
CR2: 0000000000000000
<1>Unable to handle kernel NULL pointer dereference at 0000000000000000
RIP:
<ffffffff8012e134>{dequeue_task+4}
PGD c8175067 PUD 31aea067 PMD 0
Oops: 0002 [5]
CPU 0
Pid: 3, comm: events/0 Not tainted 2.6.11.8
RIP: 0010:[<ffffffff8012e134>] <ffffffff8012e134>{dequeue_task+4}
RSP: 0018:ffff8100a7635628 EFLAGS: 00010002
RAX: 0000000000000020 RBX: ffff8100fbf906e0 RCX: ffff8100fbf90718
RDX: ffff8100fbf906e0 RSI: 0000000000000000 RDI: ffff8100fbf906e0
RBP: ffff8100a7635638 R08: 0000000000000000 R09: 000000000000000d
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8100fbf906e0
R13: ffff8100fbf91440 R14: 0000035b3fc7d274 R15: ffff8100fbf90950
FS: 000000006025212c(0000) GS:ffffffff80785a00(0000)
knlGS:0000000000000d7e
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000000 CR3: 00000000a2321000 CR4: 00000000000006e0
Process events/0 (pid: 3, threadinfo ffff8100fbfaa000, task
ffff8100fbf906e0)
Stack: ffffffff8012e3d4 ffff8100a76356c8 ffff8100a76356a8
ffffffff804f4ae2
0000000000000000 ffff8100fbf906e0 00000000069f6bc7
ffffffff801301bf
00000000ffffff01 0000000000000000
Call Trace:<ffffffff8012e3d4>{deactivate_task+20}
<ffffffff804f4ae2>{schedule+434}
<ffffffff801301bf>{mm_release+47} <ffffffff801347a7>{do_exit
+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8011f4cf>{do_page_fault
+1855}
<ffffffff8013218c>{__call_console_drivers+76}
<ffffffff8032d55b>{scrup+123}
<ffffffff8010e905>{error_exit+0} <ffffffff8012e134>{dequeue_task
+4}
<ffffffff8012e3d4>{deactivate_task+20}
<ffffffff804f4ae2>{schedule+434}
<ffffffff801301bf>{mm_release+47} <ffffffff801347a7>{do_exit
+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8011f4cf>{do_page_fault
+1855}
<ffffffff8010e905>{error_exit+0} <ffffffff804f4c99>{schedule+873}
<ffffffff804f4ae2>{schedule+434} <ffffffff801347a7>{do_exit+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8010f6e5>{die+69}
<ffffffff801100fe>{do_general_protection+270}
<ffffffff8010e905>{error_exit+0}
<ffffffff8010ca47>{__switch_to+311}
<ffffffff804f4de4>{thread_return+0}
<ffffffff8013cb08>{ptrace_stop+280}
<ffffffff8013cde6>{get_signal_to_deliver+358}
<ffffffff8010d4e3>{do_signal+163} <ffffffff8010e905>{error_exit
+0}
<ffffffff8010de67>{sys_rt_sigreturn+535}
<ffffffff8010dee9>{sys_rt_sigreturn+665}
<ffffffff8010e2b6>{int_signal+18}
Code: ff 0e 55 48 8b 47 38 48 8b 51 08 48 89 e5 48 89 02 48 89 50
RIP <ffffffff8012e134>{dequeue_task+4} RSP <ffff8100a7635628>
CR2: 0000000000000000
<1>Unable to handle kernel NULL pointer dereference at 0000000000000000
RIP:
<ffffffff8012e134>{dequeue_task+4}
PGD c8175067 PUD 31aea067 PMD 0
Oops: 0002 [6]
CPU 0
Pid: 3, comm: events/0 Not tainted 2.6.11.8
RIP: 0010:[<ffffffff8012e134>] <ffffffff8012e134>{dequeue_task+4}
RSP: 0018:ffff8100a7635388 EFLAGS: 00010006
RAX: 0000000000000020 RBX: ffff8100fbf906e0 RCX: ffff8100fbf90718
RDX: ffff8100fbf906e0 RSI: 0000000000000000 RDI: ffff8100fbf906e0
RBP: ffff8100a7635398 R08: 0000000000000000 R09: 000000000000000d
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8100fbf906e0
R13: ffff8100fbf91440 R14: 0000035bf2d22de7 R15: ffff8100fbf90950
FS: 000000006025212c(0000) GS:ffffffff80785a00(0000)
knlGS:0000000000000d7e
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000000 CR3: 00000000a2321000 CR4: 00000000000006e0
Process events/0 (pid: 3, threadinfo ffff8100fbfaa000, task
ffff8100fbf906e0)
Stack: ffffffff8012e3d4 ffff8100a7635428 ffff8100a7635408
ffffffff804f4ae2
0000000000000000 ffff8100fbf906e0 00000000069f6bc7
ffffffff801301bf
00000000ffffff01 0000000000000000
Call Trace:<ffffffff8012e3d4>{deactivate_task+20}
<ffffffff804f4ae2>{schedule+434}
<ffffffff801301bf>{mm_release+47} <ffffffff801347a7>{do_exit
+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8011f4cf>{do_page_fault
+1855}
<ffffffff8013218c>{__call_console_drivers+76}
<ffffffff8032d55b>{scrup+123}
<ffffffff8010e905>{error_exit+0} <ffffffff8012e134>{dequeue_task
+4}
<ffffffff8012e3d4>{deactivate_task+20}
<ffffffff804f4ae2>{schedule+434}
<ffffffff801301bf>{mm_release+47} <ffffffff801347a7>{do_exit
+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8011f4cf>{do_page_fault
+1855}
<ffffffff8013218c>{__call_console_drivers+76}
<ffffffff8032d55b>{scrup+123}
<ffffffff8010e905>{error_exit+0} <ffffffff8012e134>{dequeue_task
+4}
<ffffffff8012e3d4>{deactivate_task+20}
<ffffffff804f4ae2>{schedule+434}
<ffffffff801301bf>{mm_release+47} <ffffffff801347a7>{do_exit
+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8011f4cf>{do_page_fault
+1855}
<ffffffff8010e905>{error_exit+0} <ffffffff804f4c99>{schedule+873}
<ffffffff804f4ae2>{schedule+434} <ffffffff801347a7>{do_exit+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8010f6e5>{die+69}
<ffffffff801100fe>{do_general_protection+270}
<ffffffff8010e905>{error_exit+0}
<ffffffff8010ca47>{__switch_to+311}
<ffffffff804f4de4>{thread_return+0}
<ffffffff8013cb08>{ptrace_stop+280}
<ffffffff8013cde6>{get_signal_to_deliver+358}
<ffffffff8010d4e3>{do_signal+163} <ffffffff8010e905>{error_exit
+0}
<ffffffff8010de67>{sys_rt_sigreturn+535}
<ffffffff8010dee9>{sys_rt_sigreturn+665}
<ffffffff8010e2b6>{int_signal+18}
Code: ff 0e 55 48 8b 47 38 48 8b 51 08 48 89 e5 48 89 02 48 89 50
RIP <ffffffff8012e134>{dequeue_task+4} RSP <ffff8100a7635388>
CR2: 0000000000000000
<1>Unable to handle kernel NULL pointer dereference at 0000000000000000
RIP:
<ffffffff8012e134>{dequeue_task+4}
PGD c8175067 PUD 31aea067 PMD 0
Oops: 0002 [7]
CPU 0
Pid: 3, comm: events/0 Not tainted 2.6.11.8
RIP: 0010:[<ffffffff8012e134>] <ffffffff8012e134>{dequeue_task+4}
RSP: 0018:ffff8100a76350e8 EFLAGS: 00010006
RAX: 0000000000000020 RBX: ffff8100fbf906e0 RCX: ffff8100fbf90718
RDX: ffff8100fbf906e0 RSI: 0000000000000000 RDI: ffff8100fbf906e0
RBP: ffff8100a76350f8 R08: 0000000000000000 R09: 000000000000000d
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8100fbf906e0
R13: ffff8100fbf91440 R14: 0000035cc114f6cf R15: ffff8100fbf90950
FS: 000000006025212c(0000) GS:ffffffff80785a00(0000)
knlGS:0000000000000d7e
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000000 CR3: 00000000a2321000 CR4: 00000000000006e0
Process events/0 (pid: 3, threadinfo ffff8100fbfaa000, task
ffff8100fbf906e0)
Stack: ffffffff8012e3d4 ffff8100a7635188 ffff8100a7635168
ffffffff804f4ae2
0000000000000000 ffff8100fbf906e0 00000000069f6bc7
ffffffff801301bf
00000000ffffff01 0000000000000000
Call Trace:<ffffffff8012e3d4>{deactivate_task+20}
<ffffffff804f4ae2>{schedule+434}
<ffffffff801301bf>{mm_release+47} <ffffffff801347a7>{do_exit
+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8011f4cf>{do_page_fault
+1855}
<ffffffff8013218c>{__call_console_drivers+76}
<ffffffff8032d55b>{scrup+123}
<ffffffff8010e905>{error_exit+0} <ffffffff8012e134>{dequeue_task
+4}
<ffffffff8012e3d4>{deactivate_task+20}
<ffffffff804f4ae2>{schedule+434}
<ffffffff801301bf>{mm_release+47} <ffffffff801347a7>{do_exit
+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8011f4cf>{do_page_fault
+1855}
<ffffffff8013218c>{__call_console_drivers+76}
<ffffffff8032d55b>{scrup+123}
<ffffffff8010e905>{error_exit+0} <ffffffff8012e134>{dequeue_task
+4}
<ffffffff8012e3d4>{deactivate_task+20}
<ffffffff804f4ae2>{schedule+434}
<ffffffff801301bf>{mm_release+47} <ffffffff801347a7>{do_exit
+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8011f4cf>{do_page_fault
+1855}
<ffffffff8013218c>{__call_console_drivers+76}
<ffffffff8032d55b>{scrup+123}
<ffffffff8010e905>{error_exit+0} <ffffffff8012e134>{dequeue_task
+4}
<ffffffff8012e3d4>{deactivate_task+20}
<ffffffff804f4ae2>{schedule+434}
<ffffffff801301bf>{mm_release+47} <ffffffff801347a7>{do_exit
+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8011f4cf>{do_page_fault
+1855}
<ffffffff8010e905>{error_exit+0} <ffffffff804f4c99>{schedule+873}
<ffffffff804f4ae2>{schedule+434} <ffffffff801347a7>{do_exit+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8010f6e5>{die+69}
<ffffffff801100fe>{do_general_protection+270}
<ffffffff8010e905>{error_exit+0}
<ffffffff8010ca47>{__switch_to+311}
<ffffffff804f4de4>{thread_return+0}
<ffffffff8013cb08>{ptrace_stop+280}
<ffffffff8013cde6>{get_signal_to_deliver+358}
<ffffffff8010d4e3>{do_signal+163} <ffffffff8010e905>{error_exit
+0}
<ffffffff8010de67>{sys_rt_sigreturn+535}
<ffffffff8010dee9>{sys_rt_sigreturn+665}
<ffffffff8010e2b6>{int_signal+18}
Code: ff 0e 55 48 8b 47 38 48 8b 51 08 48 89 e5 48 89 02 48 89 50
RIP <ffffffff8012e134>{dequeue_task+4} RSP <ffff8100a76350e8>
CR2: 0000000000000000
<1>Unable to handle kernel NULL pointer dereference at 0000000000000000
RIP:
<ffffffff8012e134>{dequeue_task+4}
PGD c8175067 PUD 31aea067 PMD 0
Oops: 0002 [8]
CPU 0
Pid: 3, comm: events/0 Not tainted 2.6.11.8
RIP: 0010:[<ffffffff8012e134>] <ffffffff8012e134>{dequeue_task+4}
RSP: 0018:ffff8100a7634e48 EFLAGS: 00010002
RAX: 0000000000000020 RBX: ffff8100fbf906e0 RCX: ffff8100fbf90718
RDX: ffff8100fbf906e0 RSI: 0000000000000000 RDI: ffff8100fbf906e0
RBP: ffff8100a7634e58 R08: 0000000000000000 R09: 000000000000000d
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8100fbf906e0
R13: ffff8100fbf91440 R14: 0000035daaa6e647 R15: ffff8100fbf90950
FS: 000000006025212c(0000) GS:ffffffff80785a00(0000)
knlGS:0000000000000d7e
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000000 CR3: 00000000a2321000 CR4: 00000000000006e0
Process events/0 (pid: 3, threadinfo ffff8100fbfaa000, task
ffff8100fbf906e0)
Stack: ffffffff8012e3d4 ffff8100a7634ee8 ffff8100a7634ec8
ffffffff804f4ae2
0000000000000000 ffff8100fbf906e0 00000000069f6bc7
ffffffff801301bf
00000000ffffff01 0000000000000000
Call Trace:<ffffffff8012e3d4>{deactivate_task+20}
<ffffffff804f4ae2>{schedule+434}
<ffffffff801301bf>{mm_release+47} <ffffffff801347a7>{do_exit
+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8011f4cf>{do_page_fault
+1855}
<ffffffff8013218c>{__call_console_drivers+76}
<ffffffff8032d55b>{scrup+123}
<ffffffff8010e905>{error_exit+0} <ffffffff8012e134>{dequeue_task
+4}
<ffffffff8012e3d4>{deactivate_task+20}
<ffffffff804f4ae2>{schedule+434}
<ffffffff801301bf>{mm_release+47} <ffffffff801347a7>{do_exit
+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8011f4cf>{do_page_fault
+1855}
<ffffffff8013218c>{__call_console_drivers+76}
<ffffffff8032d55b>{scrup+123}
<ffffffff8010e905>{error_exit+0} <ffffffff8012e134>{dequeue_task
+4}
<ffffffff8012e3d4>{deactivate_task+20}
<ffffffff804f4ae2>{schedule+434}
<ffffffff801301bf>{mm_release+47} <ffffffff801347a7>{do_exit
+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8011f4cf>{do_page_fault
+1855}
<ffffffff8013218c>{__call_console_drivers+76}
<ffffffff8032d55b>{scrup+123}
<ffffffff8010e905>{error_exit+0} <ffffffff8012e134>{dequeue_task
+4}
<ffffffff8012e3d4>{deactivate_task+20}
<ffffffff804f4ae2>{schedule+434}
<ffffffff801301bf>{mm_release+47} <ffffffff801347a7>{do_exit
+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8011f4cf>{do_page_fault
+1855}
<ffffffff8013218c>{__call_console_drivers+76}
<ffffffff8032d55b>{scrup+123}
<ffffffff8010e905>{error_exit+0} <ffffffff8012e134>{dequeue_task
+4}
<ffffffff8012e3d4>{deactivate_task+20}
<ffffffff804f4ae2>{schedule+434}
<ffffffff801301bf>{mm_release+47} <ffffffff801347a7>{do_exit
+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8011f4cf>{do_page_fault
+1855}
<ffffffff8010e905>{error_exit+0} <ffffffff804f4c99>{schedule+873}
<ffffffff804f4ae2>{schedule+434} <ffffffff801347a7>{do_exit+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8010f6e5>{die+69}
<ffffffff801100fe>{do_general_protection+270}
<ffffffff8010e905>{error_exit+0}
<ffffffff8010ca47>{__switch_to+311}
<ffffffff804f4de4>{thread_return+0}
<ffffffff8013cb08>{ptrace_stop+280}
<ffffffff8013cde6>{get_signal_to_deliver+358}
<ffffffff8010d4e3>{do_signal+163} <ffffffff8010e905>{error_exit
+0}
<ffffffff8010de67>{sys_rt_sigreturn+535}
<ffffffff8010dee9>{sys_rt_sigreturn+665}
<ffffffff8010e2b6>{int_signal+18}
Code: ff 0e 55 48 8b 47 38 48 8b 51 08 48 89 e5 48 89 02 48 89 50
RIP <ffffffff8012e134>{dequeue_task+4} RSP <ffff8100a7634e48>
CR2: 0000000000000000
<1>Unable to handle kernel NULL pointer dereference at 0000000000000000
RIP:
<ffffffff8012e134>{dequeue_task+4}
PGD c8175067 PUD 31aea067 PMD 0
Oops: 0002 [9]
CPU 0
Pid: 3, comm: events/0 Not tainted 2.6.11.8
RIP: 0010:[<ffffffff8012e134>] <ffffffff8012e134>{dequeue_task+4}
RSP: 0018:ffff8100a7634ba8 EFLAGS: 00010002
RAX: 0000000000000020 RBX: ffff8100fbf906e0 RCX: ffff8100fbf90718
RDX: ffff8100fbf906e0 RSI: 0000000000000000 RDI: ffff8100fbf906e0
RBP: ffff8100a7634bb8 R08: 0000000000000000 R09: 000000000000000d
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8100fbf906e0
R13: ffff8100fbf91440 R14: 0000035eaf57d638 R15: ffff8100fbf90950
FS: 000000006025212c(0000) GS:ffffffff80785a00(0000)
knlGS:0000000000000d7e
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000000 CR3: 00000000a2321000 CR4: 00000000000006e0
Process events/0 (pid: 3, threadinfo ffff8100fbfaa000, task
ffff8100fbf906e0)
Stack: ffffffff8012e3d4 ffff8100a7634c48 ffff8100a7634c28
ffffffff804f4ae2
0000000000000000 ffff8100fbf906e0 00000000069f6bc7
ffffffff801301bf
00000000ffffff01 0000000000000000
Call Trace:<ffffffff8012e3d4>{deactivate_task+20}
<ffffffff804f4ae2>{schedule+434}
<ffffffff801301bf>{mm_release+47} <ffffffff801347a7>{do_exit
+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8011f4cf>{do_page_fault
+1855}
<ffffffff8013218c>{__call_console_drivers+76}
<ffffffff8032d55b>{scrup+123}
<ffffffff8010e905>{error_exit+0} <ffffffff8012e134>{dequeue_task
+4}
<ffffffff8012e3d4>{deactivate_task+20}
<ffffffff804f4ae2>{schedule+434}
<ffffffff801301bf>{mm_release+47} <ffffffff801347a7>{do_exit
+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8011f4cf>{do_page_fault
+1855}
<ffffffff8013218c>{__call_console_drivers+76}
<ffffffff8032d55b>{scrup+123}
<ffffffff8010e905>{error_exit+0} <ffffffff8012e134>{dequeue_task
+4}
<ffffffff8012e3d4>{deactivate_task+20}
<ffffffff804f4ae2>{schedule+434}
<ffffffff801301bf>{mm_release+47} <ffffffff801347a7>{do_exit
+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8011f4cf>{do_page_fault
+1855}
<ffffffff8013218c>{__call_console_drivers+76}
<ffffffff8032d55b>{scrup+123}
<ffffffff8010e905>{error_exit+0} <ffffffff8012e134>{dequeue_task
+4}
<ffffffff8012e3d4>{deactivate_task+20}
<ffffffff804f4ae2>{schedule+434}
<ffffffff801301bf>{mm_release+47} <ffffffff801347a7>{do_exit
+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8011f4cf>{do_page_fault
+1855}
<ffffffff8013218c>{__call_console_drivers+76}
<ffffffff8032d55b>{scrup+123}
<ffffffff8010e905>{error_exit+0} <ffffffff8012e134>{dequeue_task
+4}
<ffffffff8012e3d4>{deactivate_task+20}
<ffffffff804f4ae2>{schedule+434}
<ffffffff801301bf>{mm_release+47} <ffffffff801347a7>{do_exit
+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8011f4cf>{do_page_fault
+1855}
<ffffffff8013218c>{__call_console_drivers+76}
<ffffffff8032d55b>{scrup+123}
<ffffffff8010e905>{error_exit+0} <ffffffff8012e134>{dequeue_task
+4}
<ffffffff8012e3d4>{deactivate_task+20}
<ffffffff804f4ae2>{schedule+434}
<ffffffff801301bf>{mm_release+47} <ffffffff801347a7>{do_exit
+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8011f4cf>{do_page_fault
+1855}
<ffffffff8010e905>{error_exit+0} <ffffffff804f4c99>{schedule+873}
<ffffffff804f4ae2>{schedule+434} <ffffffff801347a7>{do_exit+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8010f6e5>{die+69}
<ffffffff801100fe>{do_general_protection+270}
<ffffffff8010e905>{error_exit+0}
<ffffffff8010ca47>{__switch_to+311}
<ffffffff804f4de4>{thread_return+0}
<ffffffff8013cb08>{ptrace_stop+280}
<ffffffff8013cde6>{get_signal_to_deliver+358}
<ffffffff8010d4e3>{do_signal+163} <ffffffff8010e905>{error_exit
+0}
<ffffffff8010de67>{sys_rt_sigreturn+535}
<ffffffff8010dee9>{sys_rt_sigreturn+665}
<ffffffff8010e2b6>{int_signal+18}
Code: ff 0e 55 48 8b 47 38 48 8b 51 08 48 89 e5 48 89 02 48 89 50
RIP <ffffffff8012e134>{dequeue_task+4} RSP <ffff8100a7634ba8>
CR2: 0000000000000000
<1>Unable to handle kernel NULL pointer dereference at 0000000000000000
RIP:
<ffffffff8012e134>{dequeue_task+4}
PGD c8175067 PUD 31aea067 PMD 0
Oops: 0002 [10]
CPU 0
Pid: 3, comm: events/0 Not tainted 2.6.11.8
RIP: 0010:[<ffffffff8012e134>] <ffffffff8012e134>{dequeue_task+4}
RSP: 0018:ffff8100a7634908 EFLAGS: 00010002
RAX: 0000000000000020 RBX: ffff8100fbf906e0 RCX: ffff8100fbf90718
RDX: ffff8100fbf906e0 RSI: 0000000000000000 RDI: ffff8100fbf906e0
RBP: ffff8100a7634918 R08: 0000000000000000 R09: 000000000000000d
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8100fbf906e0
R13: ffff8100fbf91440 R14: 0000035fcf41c4f5 R15: ffff8100fbf90950
FS: 000000006025212c(0000) GS:ffffffff80785a00(0000)
knlGS:0000000000000d7e
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000000 CR3: 00000000a2321000 CR4: 00000000000006e0
Process events/0 (pid: 3, threadinfo ffff8100fbfaa000, task
ffff8100fbf906e0)
Stack: ffffffff8012e3d4 ffff8100a76349a8 ffff8100a7634988
ffffffff804f4ae2
0000000000000000 ffff8100fbf906e0 00000000069f6bc7
ffffffff801301bf
00000000ffffff01 0000000000000000
Call Trace:<ffffffff8012e3d4>{deactivate_task+20}
<ffffffff804f4ae2>{schedule+434}
<ffffffff801301bf>{mm_release+47} <ffffffff801347a7>{do_exit
+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8011f4cf>{do_page_fault
+1855}
<ffffffff8013218c>{__call_console_drivers+76}
<ffffffff8032d55b>{scrup+123}
<ffffffff8010e905>{error_exit+0} <ffffffff8012e134>{dequeue_task
+4}
<ffffffff8012e3d4>{deactivate_task+20}
<ffffffff804f4ae2>{schedule+434}
<ffffffff801301bf>{mm_release+47} <ffffffff801347a7>{do_exit
+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8011f4cf>{do_page_fault
+1855}
<ffffffff8013218c>{__call_console_drivers+76}
<ffffffff8032d55b>{scrup+123}
<ffffffff8010e905>{error_exit+0} <ffffffff8012e134>{dequeue_task
+4}
<ffffffff8012e3d4>{deactivate_task+20}
<ffffffff804f4ae2>{schedule+434}
<ffffffff801301bf>{mm_release+47} <ffffffff801347a7>{do_exit
+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8011f4cf>{do_page_fault
+1855}
<ffffffff8013218c>{__call_console_drivers+76}
<ffffffff8032d55b>{scrup+123}
<ffffffff8010e905>{error_exit+0} <ffffffff8012e134>{dequeue_task
+4}
<ffffffff8012e3d4>{deactivate_task+20}
<ffffffff804f4ae2>{schedule+434}
<ffffffff801301bf>{mm_release+47} <ffffffff801347a7>{do_exit
+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8011f4cf>{do_page_fault
+1855}
<ffffffff8013218c>{__call_console_drivers+76}
<ffffffff8032d55b>{scrup+123}
<ffffffff8010e905>{error_exit+0} <ffffffff8012e134>{dequeue_task
+4}
<ffffffff8012e3d4>{deactivate_task+20}
<ffffffff804f4ae2>{schedule+434}
<ffffffff801301bf>{mm_release+47} <ffffffff801347a7>{do_exit
+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8011f4cf>{do_page_fault
+1855}
<ffffffff8013218c>{__call_console_drivers+76}
<ffffffff8032d55b>{scrup+123}
<ffffffff8010e905>{error_exit+0} <ffffffff8012e134>{dequeue_task
+4}
<ffffffff8012e3d4>{deactivate_task+20}
<ffffffff804f4ae2>{schedule+434}
<ffffffff801301bf>{mm_release+47} <ffffffff801347a7>{do_exit
+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8011f4cf>{do_page_fault
+1855}
<ffffffff8013218c>{__call_console_drivers+76}
<ffffffff8032d55b>{scrup+123}
<ffffffff8010e905>{error_exit+0} <ffffffff8012e134>{dequeue_task
+4}
<ffffffff8012e3d4>{deactivate_task+20}
<ffffffff804f4ae2>{schedule+434}
<ffffffff801301bf>{mm_release+47} <ffffffff801347a7>{do_exit
+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8011f4cf>{do_page_fault
+1855}
<ffffffff8010e905>{error_exit+0} <ffffffff804f4c99>{schedule+873}
<ffffffff804f4ae2>{schedule+434} <ffffffff801347a7>{do_exit+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8010f6e5>{die+69}
<ffffffff801100fe>{do_general_protection+270}
<ffffffff8010e905>{error_exit+0}
<ffffffff8010ca47>{__switch_to+311}
<ffffffff804f4de4>{thread_return+0}
<ffffffff8013cb08>{ptrace_stop+280}
<ffffffff8013cde6>{get_signal_to_deliver+358}
<ffffffff8010d4e3>{do_signal+163} <ffffffff8010e905>{error_exit
+0}
<ffffffff8010de67>{sys_rt_sigreturn+535}
<ffffffff8010dee9>{sys_rt_sigreturn+665}
<ffffffff8010e2b6>{int_signal+18}
Code: ff 0e 55 48 8b 47 38 48 8b 51 08 48 89 e5 48 89 02 48 89 50
RIP <ffffffff8012e134>{dequeue_task+4} RSP <ffff8100a7634908>
CR2: 0000000000000000
<1>Unable to handle kernel NULL pointer dereference at 0000000000000000
RIP:
<ffffffff8012e134>{dequeue_task+4}
PGD c8175067 PUD 31aea067 PMD 0
Oops: 0002 [11]
CPU 0
Pid: 3, comm: events/0 Not tainted 2.6.11.8
RIP: 0010:[<ffffffff8012e134>] <ffffffff8012e134>{dequeue_task+4}
RSP: 0018:ffff8100a7634668 EFLAGS: 00010002
RAX: 0000000000000020 RBX: ffff8100fbf906e0 RCX: ffff8100fbf90718
RDX: ffff8100fbf906e0 RSI: 0000000000000000 RDI: ffff8100fbf906e0
RBP: ffff8100a7634678 R08: 0000000000000000 R09: 000000000000000d
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8100fbf906e0
R13: ffff8100fbf91440 R14: 000003610a89cc6d R15: ffff8100fbf90950
FS: 000000006025212c(0000) GS:ffffffff80785a00(0000)
knlGS:0000000000000d7e
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000000 CR3: 00000000a2321000 CR4: 00000000000006e0
Process events/0 (pid: 3, threadinfo ffff8100fbfaa000, task
ffff8100fbf906e0)
Stack: ffffffff8012e3d4 ffff8100a7634708 ffff8100a76346e8
ffffffff804f4ae2
0000000000000000 ffff8100fbf906e0 00000000069f6bc7
ffffffff801301bf
00000000ffffff01 0000000000000000
Call Trace:<ffffffff8012e3d4>{deactivate_task+20}
<ffffffff804f4ae2>{schedule+434}
<ffffffff801301bf>{mm_release+47} <ffffffff801347a7>{do_exit
+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8011f4cf>{do_page_fault
+1855}
<ffffffff8013218c>{__call_console_drivers+76}
<ffffffff8032d55b>{scrup+123}
<ffffffff8010e905>{error_exit+0} <ffffffff8012e134>{dequeue_task
+4}
<ffffffff8012e3d4>{deactivate_task+20}
<ffffffff804f4ae2>{schedule+434}
<ffffffff801301bf>{mm_release+47} <ffffffff801347a7>{do_exit
+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8011f4cf>{do_page_fault
+1855}
<ffffffff8013218c>{__call_console_drivers+76}
<ffffffff8032d55b>{scrup+123}
<ffffffff8010e905>{error_exit+0} <ffffffff8012e134>{dequeue_task
+4}
<ffffffff8012e3d4>{deactivate_task+20}
<ffffffff804f4ae2>{schedule+434}
<ffffffff801301bf>{mm_release+47} <ffffffff801347a7>{do_exit
+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8011f4cf>{do_page_fault
+1855}
<ffffffff8013218c>{__call_console_drivers+76}
<ffffffff8032d55b>{scrup+123}
<ffffffff8010e905>{error_exit+0} <ffffffff8012e134>{dequeue_task
+4}
<ffffffff8012e3d4>{deactivate_task+20}
<ffffffff804f4ae2>{schedule+434}
<ffffffff801301bf>{mm_release+47} <ffffffff801347a7>{do_exit
+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8011f4cf>{do_page_fault
+1855}
<ffffffff8013218c>{__call_console_drivers+76}
<ffffffff8032d55b>{scrup+123}
<ffffffff8010e905>{error_exit+0} <ffffffff8012e134>{dequeue_task
+4}
<ffffffff8012e3d4>{deactivate_task+20}
<ffffffff804f4ae2>{schedule+434}
<ffffffff801301bf>{mm_release+47} <ffffffff801347a7>{do_exit
+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8011f4cf>{do_page_fault
+1855}
<ffffffff8013218c>{__call_console_drivers+76}
<ffffffff8032d55b>{scrup+123}
<ffffffff8010e905>{error_exit+0} <ffffffff8012e134>{dequeue_task
+4}
<ffffffff8012e3d4>{deactivate_task+20}
<ffffffff804f4ae2>{schedule+434}
<ffffffff801301bf>{mm_release+47} <ffffffff801347a7>{do_exit
+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8011f4cf>{do_page_fault
+1855}
<ffffffff8013218c>{__call_console_drivers+76}
<ffffffff8032d55b>{scrup+123}
<ffffffff8010e905>{error_exit+0} <ffffffff8012e134>{dequeue_task
+4}
<ffffffff8012e3d4>{deactivate_task+20}
<ffffffff804f4ae2>{schedule+434}
<ffffffff801301bf>{mm_release+47} <ffffffff801347a7>{do_exit
+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8011f4cf>{do_page_fault
+1855}
<ffffffff8013218c>{__call_console_drivers+76}
<ffffffff8032d55b>{scrup+123}
<ffffffff8010e905>{error_exit+0} <ffffffff8012e134>{dequeue_task
+4}
<ffffffff8012e3d4>{deactivate_task+20}
<ffffffff804f4ae2>{schedule+434}
<ffffffff801301bf>{mm_release+47} <ffffffff801347a7>{do_exit
+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8011f4cf>{do_page_fault
+1855}
<ffffffff8010e905>{error_exit+0} <ffffffff804f4c99>{schedule+873}
<ffffffff804f4ae2>{schedule+434} <ffffffff801347a7>{do_exit+2535}
<ffffffff8010f5ac>{oops_end+28} <ffffffff8010f6e5>{die+69}
<ffffffff801100fe>{do_general_protection+270}
<ffffffff8010e905>{error_exit+0}
<ffffffff8010ca47>{__switch_to+311}
<ffffffff804f4de4>{thread_return+0}
<ff
On Fri, 2005-05-06 at 16:09 +0100, Antoine Martin wrote:
> > The 64-bit guest boots into existing 32-bit root_fs without problems, I
> > will rebuild all my 64-bit guests and let you know how this goes.
> Actually, I got mixed up, the 64-bit filesystems worked but the 32-bit
> didn't. I couldn't find any option to allow support for 32-bit binaries,
> has it been removed? Does this mean that we need pure 64-bit fs?
>
> > But so far, the performance increase over TT guests on a x86_64 box is
> > quite simply breathtaking!
> That is still true. No figures yet, just the feeling of interactivity.
-------------------------------------------------------
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