On 4/23/18 7:50 AM, Julian Elischer wrote:
> back trace at:  http://www.freebsd.org/~julian/bob-crash.png
> 
> If anyone wants to take a look..
> 
> In the exit syscall, while deallocating a vm object.
> 
> I haven't see references to a similar crash in the last 10 days or so..
> But if it rings any bells...
> 

I just hit this on r332455 and have a dump.

> panic: Bad link elm 0xfffff811cd920e60 prev->next != elm
> cpuid = 10
> time = 1524682939
> KDB: stack backtrace:
> db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe23f450c3b0
> vpanic() at vpanic+0x18d/frame 0xfffffe23f450c410
> panic() at panic+0x43/frame 0xfffffe23f450c470
> vm_object_destroy() at vm_object_destroy/frame 0xfffffe23f450c4d0
> vm_object_deallocate() at vm_object_deallocate+0x45c/frame 0xfffffe23f450c530
> vm_map_process_deferred() at vm_map_process_deferred+0x99/frame 
> 0xfffffe23f450c560
> vm_map_remove() at vm_map_remove+0xc6/frame 0xfffffe23f450c590
> exec_new_vmspace() at exec_new_vmspace+0x185/frame 0xfffffe23f450c5f0
> exec_elf64_imgact() at exec_elf64_imgact+0x8fb/frame 0xfffffe23f450c6e0
> kern_execve() at kern_execve+0x82c/frame 0xfffffe23f450ca40
> sys_execve() at sys_execve+0x4c/frame 0xfffffe23f450cac0
> amd64_syscall() at amd64_syscall+0x786/frame 0xfffffe23f450cbf0
> fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe23f450cbf0
> --- syscall (59, FreeBSD ELF64, sys_execve), rip = 0x800d7af7a, rsp = 
> 0x7fffffffbd28, rbp = 0x7fffffffbe70 ---



-- 
Regards,
Bryan Drewery

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