Date: Sat, 8 Jul 1995 12:35:38 -0700 From: Matt Dillon <root@best.com> To: bugs@freebsd.org, dima@blob.best.net Subject: nfs_bioread() crash (w/ debug core dump) Message-ID: <199507081935.MAA27234@blob.best.net>
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This crash popped up. Looks like nfsbioread() is expecting B_DELWRI
in the bp to be set and it isn't. I don't know the cause of this
one, but it has caused two crashes so far.
(yell if you need more info)
-Matt
IdlePTD 1e2000
current pcb at 1c77b8
panic: nfsbioread
(kgdb) back
#0 boot (arghowto=256) at ../../i386/i386/machdep.c:866
#1 0xf0110543 in panic (fmt=0xf0141dca "nfsbioread")
at ../../kern/subr_prf.c:128
#2 0xf01424c6 in nfs_bioread (vp=0xf2575c80, uio=0xefbfff38, ioflag=0,
cred=0xf2a53400) at ../../nfs/nfs_bio.c:270
#3 0xf0166fde in nfs_read (ap=0xefbffef4) at ../../nfs/nfs_vnops.c:936
#4 0xf012abb2 in vn_read (fp=0xf2a94640, uio=0xefbfff38, cred=0xf2a53400)
at ./vnode_if.h:211
#5 0xf0111823 in read (p=0xf2578b00, uap=0xefbfff94, retval=0xefbfff8c)
at ../../kern/sys_generic.c:112
#6 0xf01a2b67 in syscall (frame={tf_es = 39, tf_ds = 39, tf_edi = 1,
tf_esi = 8192, tf_ebp = -272639924, tf_isp = -272629788, tf_ebx = 0,
tf_edx = 69628, tf_ecx = 1, tf_eax = 3, tf_trapno = 582, tf_err = 582,
tf_eip = 43221, tf_cs = 31, tf_eflags = 582, tf_esp = -272640048,
tf_ss = 39}) at ../../i386/i386/trap.c:828
#7 0xf019b4ab in Xsyscall ()
#8 0x1daf in ?? ()
#9 0x18a6 in ?? ()
#10 0x10e8 in ?? ()
(kgdb)
(kgdb) frame 2
#2 0xf01424c6 in nfs_bioread (vp=0xf2575c80, uio=0xefbfff38, ioflag=0,
cred=0xf2a53400) at ../../nfs/nfs_bio.c:270
(kgdb) print *bp
$1 = {b_hash = {le_next = 0xf3c77158, le_prev = 0xf01d8138}, b_vnbufs = {
le_next = 0xf3c81cc8, le_prev = 0xf3c77230}, b_freelist = {
tqe_next = 0xf3c8ff78, tqe_prev = 0xf3c969f8}, b_actf = 0xf3c9c828,
b_actb = 0x0, b_proc = 0x0, b_flags = 536904240, b_qindex = 0, b_error = 0,
b_bufsize = 8192, b_bcount = 8192, b_resid = 0, b_dev = 4294967295, b_un = {
b_addr = 0xf4f09000 "uston%2C+TX&country=USA&email=@ceti.energyinno.com&pname=&html=http%3A%2F%2F¬e=&comment=Hey+Stan+-+Just+me.++Thought+I%27d+better+sign+in+with+you%2C+or+you%27d+%0D%0Asend+Congress+after+me%21++How"...},
b_saveaddr = 0x0, b_lblkno = 175, b_blkno = 2800, b_iodone = 0,
b_iodone_chain = 0x0, b_vp = 0xf2575c80, b_pfcent = 0, b_dirtyoff = 3130,
b_dirtyend = 3130, b_rcred = 0xffffffff, b_wcred = 0xf2a53400,
b_validoff = 3130, b_validend = 8192, b_pblkno = 1843567, b_savekva = 0x0,
b_driver1 = 0x0, b_driver2 = 0x0, b_spc = 0x0, b_pages = {0xf02b799c,
0xf03227b8, 0x0 <repeats 14 times>}, b_npages = 2}
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