Re: another lock order reversal

Lars Eggert wrote: lock order reversal 1st 0xc6f47a68 vnode interlock (vnode interlock) @ /usr/src/sys/nfsclient/nfs_vnops.c:2629 2nd 0xc04b8640 vm page queue mutex (vm page queue mutex) @ /usr/src/sys/vm/vm_kern.c:424 Still present on yesterday's -current. Lars -- Lars Eggert <[EMAIL PROTEC

Re: yet another lock order reversal

On 21 Oct, Robert Watson wrote: > > On Mon, 21 Oct 2002, Lars Eggert wrote: > >> lock order reversal >> 1st 0xc791bc00 pipe mutex (pipe mutex) @ /usr/src/sys/kern/sys_pipe.c:465 >> 2nd 0xc04974e0 sigio lock (sigio lock) @ /usr/src/sys/kern/kern_sig.c:2156 > > It strikes me that, for better o

Re: yet another lock order reversal

On Mon, 21 Oct 2002, Lars Eggert wrote: > lock order reversal > 1st 0xc791bc00 pipe mutex (pipe mutex) @ /usr/src/sys/kern/sys_pipe.c:465 > 2nd 0xc04974e0 sigio lock (sigio lock) @ /usr/src/sys/kern/kern_sig.c:2156 It strikes me that, for better or for worse, the reported "reversal" is the r

Re: yet another lock order reversal

On 21 Oct, Lars Eggert wrote: > lock order reversal > 1st 0xc791bc00 pipe mutex (pipe mutex) @ /usr/src/sys/kern/sys_pipe.c:465 > 2nd 0xc04974e0 sigio lock (sigio lock) @ /usr/src/sys/kern/kern_sig.c:2156 I've been complaining about that one for ages. I think I know how I want to attack it, b

yet another lock order reversal

lock order reversal 1st 0xc791bc00 pipe mutex (pipe mutex) @ /usr/src/sys/kern/sys_pipe.c:465 2nd 0xc04974e0 sigio lock (sigio lock) @ /usr/src/sys/kern/kern_sig.c:2156 Debugger("witness_lock") Stopped at Debugger+0x5a: xchgl %ebx,in_Debugger.0 db> trace Debugger(c0440ebb,c04974e0,c043a

another lock order reversal

lock order reversal 1st 0xc6f47a68 vnode interlock (vnode interlock) @ /usr/src/sys/nfsclient/nfs_vnops.c:2629 2nd 0xc04b8640 vm page queue mutex (vm page queue mutex) @ /usr/src/sys/vm/vm_kern.c:424 Debugger("witness_lock") Stopped at Debugger+0x5a: xchgl %ebx,in_Debugger.0 db> trace