Anyone Else Seeing: Assertion td->td_turnstile

[Randy Bush]

oh, and with an unassertive kernel, i get a similar hard crash

kernel trap 12 with interrupts disabled


Fatal trap 12: page fault while in kernel mode
fault virtual address   = 0x10
fault code              = supervisor write, page not present
instruction pointer     = 0x8:0xc04dce1c
stack pointer           = 0x10:0xdf021ae0
frame pointer           = 0x10:0xdf021b00
code segment            = base 0x0, limit 0xfffff, type 0x1b
                        = DPL 0, pres 1, def32 1, gran 1
processor eflags        = resume, IOPL = 0
current process         = 830 (mysqld)
[thread 100261]
Stopped at      turnstile_wait+0x20c:   movl    %eax,0x10(%edx)
db> trace
turnstile_wait(c23f8ac0,c0644b80,c22e8420,4,c2822b00) at turnstile_wait+0x20c
_mtx_lock_sleep(c0644b80,0,0,0,1) at _mtx_lock_sleep+0xd5
cv_wait_sig(c064a004,c0649fe0,df021b8c,4,4) at cv_wait_sig+0x29e
kern_select(c2822b00,4,bfbfed10,0,0) at kern_select+0x688
select(c2822b00,df021d14,14,6,5) at select+0x66
syscall(835002f,2f,835002f,835b000,0) at syscall+0x320
Xint0x80_syscall() at Xint0x80_syscall+0x1f
--- syscall (93, FreeBSD ELF32, select), eip = 0x284e3fbf, esp = 0xbfbfe8bc, ebp = 0xbfbfe8f8 ---

randy