kern/69629: panic: Assertion td->td_turnstile

[Randy Bush]

>Number:         69629
>Category:       kern
>Synopsis:       panic: Assertion td->td_turnstile
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Jul 26 19:20:21 GMT 2004
>Closed-Date:
>Last-Modified:
>Originator:     Randy Bush
>Release:        FreeBSD psg.com 5.2-CURRENT FreeBSD 5.2-CURRENT #8: Mon Jul 26 18:40:38 GMT 200
>Organization:
IIJ
>Environment:
FreeBSD psg.com 5.2-CURRENT FreeBSD 5.2-CURRENT #8: Mon Jul 26 18:40:38 GMT 200
>Description:
panic: Assertion td->td_turnstile != NULL failed at /usr/src/sys/kern/subr_turnstile.c:478
cpuid = 0; 
KDB: enter: panic
[thread 100340]
Stopped at      kdb_enter+0x30: movl    %ebp,%esp
db> trace
kdb_enter(c05f8022,0,c05f4cb4,df14faa8,100) at kdb_enter+0x30
panic(c05f4cb4,c05fb006,c05fadea,1de,c064d588) at panic+0x156
turnstile_wait(c2142a00,c0642980,c27b89a0,20e,c26d4dc0) at turnstile_wait+0x2ac
_mtx_lock_sleep(c0642980,0,c05f4d75,cc,c26d4dc0) at _mtx_lock_sleep+0x195
_mtx_lock_flags(c0642980,0,c05f4d75,cc,1) at _mtx_lock_flags+0xb2
cv_wait_sig(c0672e24,c0672e00,c05fbc70,2ee,4) at cv_wait_sig+0x2f4
kern_select(c26d4dc0,4,bfbfed10,0,0) at kern_select+0x516
select(c26d4dc0,df14fd14,14,431,5) at select+0x66
syscall(835002f,2f,a7f002f,835b000,0) at syscall+0x2a0
Xint0x80_syscall() at Xint0x80_syscall+0x1f
--- syscall (93, FreeBSD ELF32, select), eip = 0x284e3fbf, esp = 0xbfbfe8bc, ebp = 0xbfbfe8f8 ---

>How-To-Repeat:
invariants and witness on
>Fix:
      
>Release-Note:
>Audit-Trail:
>Unformatted: