Date: Tue, 27 Jul 2004 22:52:50 -0400 From: Brian Fundakowski Feldman <green@freebsd.org> To: Randy Bush <randy@psg.com> Cc: Garance A Drosihn <drosih@rpi.edu> Subject: Re: Anyone Else Seeing: Assertion td->td_turnstile Message-ID: <20040728025250.GH96815@green.homeunix.org> In-Reply-To: <16646.51872.848411.893128@roam.psg.com> References: <16645.20955.594465.563275@roam.psg.com> <16646.47072.297810.282486@roam.psg.com> <p0611040fbd2c6fd1ab7d@[128.113.24.47]> <16646.51872.848411.893128@roam.psg.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On Tue, Jul 27, 2004 at 11:35:28AM -1000, Randy Bush wrote: > 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 --- Stability is amazingly improved after removing PREEMPTION. -- Brian Fundakowski Feldman \'[ FreeBSD ]''''''''''\ <> green@FreeBSD.org \ The Power to Serve! \ Opinions expressed are my own. \,,,,,,,,,,,,,,,,,,,,,,\
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20040728025250.GH96815>