The stack trace isn't very helpful. Here it is.
EIP: 0073:[<d84156c5>] CPU: 0 Not tainted ESP: 007b:0be3ea78 EFLAGS:
00210206
Not tainted
EAX: 0be548d8 EBX: 08325b54 ECX: 08325b58 EDX: 0be548cc
ESI: 00000001 EDI: 080598c6 EBP: 0be3ea98 DS: 007b ES: 007b
08323b6c: [<0806a718>] show_regs+0xc4/0xc9
08323b98: [<080594b3>] segv+0x20e/0x226
08323c3c: [<080592a0>] segv_handler+0x4f/0x54
08323c5c: [<0806537b>] sig_handler_common+0x63/0x72
08323cd4: [<080653b8>] sig_handler+0x2e/0x3e
08323cec: [<080654dd>] handle_signal+0x4d/0x7a
08323d0c: [<08066ebf>] hard_handler+0xf/0x14
08323d1c: [<b7fff420>] 0xb7fff420
Kernel panic - not syncing: Kernel mode fault at addr 0xd84156c5, ip
0xd84156c5
EIP: 0073:[<40146334>] CPU: 0 Not tainted ESP: 007b:bfaf2378 EFLAGS:
00200246
Not tainted
EAX: ffffffda EBX: 00000003 ECX: c134fd09 EDX: 08050368
ESI: 4002b7c0 EDI: 40029180 EBP: bfaf24c8 DS: 007b ES: 007b
08323ad8: [<0806a718>] show_regs+0xc4/0xc9
08323b04: [<080596ed>] panic_exit+0x23/0x39
08323b18: [<080849d0>] notifier_call_chain+0x21/0x4d
08323b38: [<08084a72>] __atomic_notifier_call_chain+0x17/0x19
08323b54: [<08084a89>] atomic_notifier_call_chain+0x15/0x17
08323b70: [<0807116f>] panic+0x4f/0xd1
08323b8c: [<080594c1>] segv+0x21c/0x226
08323c3c: [<080592a0>] segv_handler+0x4f/0x54
08323c5c: [<0806537b>] sig_handler_common+0x63/0x72
08323cd4: [<080653b8>] sig_handler+0x2e/0x3e
08323cec: [<080654dd>] handle_signal+0x4d/0x7a
08323d0c: [<08066ebf>] hard_handler+0xf/0x14
08323d1c: [<b7fff420>] 0xb7fff420
Segmentation fault
Jiaying
On Thu, Jul 3, 2008 at 9:56 PM, Jeff Dike <[EMAIL PROTECTED]> wrote:
> On Thu, Jul 03, 2008 at 12:53:46AM -0700, Jiaying Zhang wrote:
> > I found since 2.6.25 kernels, uml crashes when it calls down() on a
> > semaphore with
> > zero counter.
>
> What's the stack trace?
>
> Can you bisect it?
>
> Jeff
>
> --
> Work email - jdike at linux dot intel dot com
>
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