Date: 24 Feb 2003 16:55:19 -0500 From: Dan Pelleg <daniel+bsd@pelleg.org> To: freebsd-fs@FreeBSD.ORG Subject: UFS panics, NFS+quota Message-ID: <u2sisv9l4xk.fsf@gs166.sp.cs.cmu.edu>
next in thread | raw e-mail | index | archive | help
I'm getting occasional crashes on this 4.7-RELEASE-p2 NFS server. In the past the crashes were somewhat correlated with big (multiple files, >10GB total) deletions on the NFS volume in the 12-24 hours preceding the crash. This time, it happened during a big write from a NFS client. Softupdates and quota is on. I'm attaching my attempt at debugging though I'll admit I know nothing about this piece of code. Note a similar trace I posted about 10 months ago at: http://docs.freebsd.org/cgi/getmsg.cgi?fetch=865575+0+/usr/local/www/db/text/2002/freebsd-stable/20020519.freebsd-stable That one, too, was in getinoquota(). I'll gladly provide more details on request. -- Dan Pelleg IdlePTD at phsyical address 0x0047d000 initial pcb at physical address 0x003d1940 panicstr: page fault panic messages: --- Fatal trap 12: page fault while in kernel mode fault virtual address = 0x0 fault code = supervisor write, page not present instruction pointer = 0x8:0xc02c14da stack pointer = 0x10:0xeac519a4 frame pointer = 0x10:0xeac519f4 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 117 (nfsd) interrupt mask = none trap number = 12 panic: page fault syncing disks... 25 6 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 giving up on 1 buffers Uptime: 68d22h13m15s (da2:ahc1:0:0:0): SYNCHRONIZE CACHE. CDB: 35 0 0 0 0 0 0 0 0 0 (da2:ahc1:0:0:0): ILLEGAL REQUEST asc:20,0 (da2:ahc1:0:0:0): Invalid command operation code ... (kgdb) where #0 dumpsys () at /usr/src/sys/kern/kern_shutdown.c:487 #1 0xc01c1c97 in boot (howto=256) at /usr/src/sys/kern/kern_shutdown.c:316 #2 0xc01c20bc in poweroff_wait (junk=0xc036376c, howto=-1070189937) at /usr/src/sys/kern/kern_shutdown.c:595 #3 0xc0304b8a in trap_fatal (frame=0xeac51964, eva=0) at /usr/src/sys/i386/i386/trap.c:974 #4 0xc030485d in trap_pfault (frame=0xeac51964, usermode=0, eva=0) at /usr/src/sys/i386/i386/trap.c:867 #5 0xc0304447 in trap (frame={tf_fs = 16, tf_es = -1071972336, tf_ds = 16, tf_edi = -356261184, tf_esi = -961507048, tf_ebp = -356181516, tf_isp = -356181616, tf_ebx = -957144960, tf_edx = 0, tf_ecx = -876541184, tf_eax = 0, tf_trapno = 12, tf_err = 2, tf_eip = -1070852902, tf_cs = 8, tf_eflags = 66118, tf_esp = -876541184, tf_ss = -316964672}) at /usr/src/sys/i386/i386/trap.c:466 #6 0xc02c14da in dqget (vp=0xed1b80c0, id=100, ump=0xc6d1ae00, type=1, dqp=0xcbc10b48) at /usr/src/sys/ufs/ufs/ufs_quota.c:763 #7 0xc02c091f in getinoquota (ip=0xcbc10b00) at /usr/src/sys/ufs/ufs/ufs_quota.c:104 #8 0xc02c3859 in ufs_mkdir (ap=0xeac51bf8) at /usr/src/sys/ufs/ufs/ufs_vnops.c:1374 #9 0xc02c4a1d in ufs_vnoperate (ap=0xeac51bf8) at /usr/src/sys/ufs/ufs/ufs_vnops.c:2422 #10 0xc0246c98 in nfsrv_mkdir (nfsd=0xc7d5c900, slp=0xc829c400, procp=0xe5b320c0, mrq=0xeac51df8) at vnode_if.h:674 #11 0xc025629a in nfssvc_nfsd (nsd=0xeac51e58, argp=0x807da20 "", p=0xe5b320c0) at /usr/src/sys/nfs/nfs_syscalls.c:602 #12 0xc0255bf3 in nfssvc (p=0xe5b320c0, uap=0xeac51f80) at /usr/src/sys/nfs/nfs_syscalls.c:306 #13 0xc0304e39 in syscall2 (frame={tf_fs = 47, tf_es = 47, tf_ds = 47, tf_edi = 0, tf_esi = 0, tf_ebp = -1077936772, tf_isp = -356180012, tf_ebx = 4, tf_edx = 1, tf_ecx = -3, tf_eax = 155, tf_trapno = 12, tf_err = 2, tf_eip = 134518508, tf_cs = 31, tf_eflags = 643, tf_esp = -1077937200, tf_ss = 47}) at /usr/src/sys/i386/i386/trap.c:1175 #14 0xc02f9235 in Xint0x80_syscall () #15 0x8048135 in ?? () (kgdb) fram 6 #6 0xc02c14da in dqget (vp=0xed1b80c0, id=100, ump=0xc6d1ae00, type=1, dqp=0xcbc10b48) at /usr/src/sys/ufs/ufs/ufs_quota.c:763 763 TAILQ_REMOVE(&dqfreelist, dq, dq_freelist); (kgdb) print dq $1 = (struct dquot *) 0x0 (kgdb) print dq_freelist No symbol "dq_freelist" in current context. (kgdb) print dqfreelist $2 = {tqh_first = 0xc6f36800, tqh_last = 0x0} To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-fs" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?u2sisv9l4xk.fsf>