stable/9 r225827 i386 panic: vm_page_unwire: page 0xc2a38dc8's
wire count is zero
Alexandr Kovalenko
alexandr.kovalenko at gmail.com
Thu Sep 29 13:20:02 UTC 2011
2011/9/29 Kostik Belousov <kostikbel at gmail.com>:
> On Thu, Sep 29, 2011 at 04:12:19PM +0300, Alexandr Kovalenko wrote:
>> 2011/9/29 Kostik Belousov <kostikbel at gmail.com>:
>> > On Thu, Sep 29, 2011 at 03:51:53PM +0300, Alexandr Kovalenko wrote:
>> >> 2011/9/29 Kostik Belousov <kostikbel at gmail.com>:
>> >> > On Thu, Sep 29, 2011 at 03:47:19PM +0300, Alexandr Kovalenko wrote:
>> >> >> On Thu, Sep 29, 2011 at 3:30 PM, Kostik Belousov <kostikbel at gmail.com> wrote:
>> >> >> > On Thu, Sep 29, 2011 at 02:52:31PM +0300, Alexandr Kovalenko wrote:
>> >> >> >> Hello!
>> >> >> >>
>> >> >> >> I'm running 9.0-BETA3 (r225827) and now rebuilding all my 1215 ports
>> >> >> >> (I've upgraded from 8.2). I'm getting panic. Is it known
>> >> >> >> problem/already fixed somewhere?
>> > Do you use custom kernel config ? Is there a chance you have ZERO_COPY_SOCKETS
>> > option enabled ?
>>
>> Yes, ZERO_COPY_SOCKETS is there.
> Ok, this is the cause. Remove it.
So, ZERO_COPY_SOCKETS is broken?
> I asked for some additional data below, which you ignored, but I believe
> that I will not see anything new there, after we found the ZERO_COPY_SOCKETS
> in kernel config.
Sorry, didn't noticed that.
(kgdb) p *(struct vm_object *)0xc5725770
$1 = {mtx = {lock_object = {lo_name = 0xc0a3f26a "vm object", lo_flags
= 21168128, lo_data = 0, lo_witness = 0x0}, mtx_lock = 4}, object_list
= {tqe_next = 0xc5725110, tqe_prev = 0xc61714dc}, shadow_head =
{lh_first = 0x0}, shadow_list = {le_next = 0xc5af0c38,
le_prev = 0xc11ac704}, memq = {tqh_first = 0xc2dc5168, tqh_last =
0xc1719718}, root = 0xc2cf2fe8, size = 6576, generation = 1, ref_count
= 1, shadow_count = 0, memattr = 6 '\006', type = 1 '\001', flags =
12288, pg_color = 45335, paging_in_progress = 0,
resident_page_count = 6202, backing_object = 0x0,
backing_object_offset = 0, pager_object_list = {tqe_next = 0x0,
tqe_prev = 0x0}, rvq = {lh_first = 0x0}, cache = 0xc18f2390, handle =
0x0, un_pager = {vnp = {vnp_size = 66}, devp = {devp_pglist =
{tqh_first = 0x42,
tqh_last = 0x0}}, sgp = {sgp_pglist = {tqh_first = 0x42,
tqh_last = 0x0}}, swp = {swp_bcount = 66}}, cred = 0xc56a4280, charge
= 26935296}
>
>>
>>
>>
>> >
>> >> >> >>
>> >> >> >> FreeBSD mile.xxx.ua 9.0-BETA3 FreeBSD 9.0-BETA3 #0 r225827: Wed Sep 28
>> >> >> >> 17:11:17 EEST 2011 root at mile.xxx.ua:/usr/obj/usr/src/sys/mile-9
>> >> >> >> i386
>> >> >> >>
>> >> >> >> Unread portion of the kernel message buffer:
>> >> >> >> panic: vm_page_unwire: page 0xc2a38dc8's wire count is zero
>> >> >> >> cpuid = 1
>> >> >> >> Uptime: 16h6m53s
>> >> >> >> Physical memory: 1904 MB
>> >> >> >> Dumping 367 MB: 352 336 320 304 288 272 256 240 224 208 192 176 160
>> >> >> >> 144 128 112 96 80 64 48 32 16
>> >> >> >>
>> >> >> >> #0 doadump (textdump=1) at pcpu.h:244
>> >> >> >> #1 0xc071e5cb in kern_reboot (howto=260)
>> >> >> >> at /usr/src/sys/kern/kern_shutdown.c:442
>> >> >> >> #2 0xc071e82b in panic (fmt=Variable "fmt" is not available.
>> >> >> >> ) at /usr/src/sys/kern/kern_shutdown.c:607
>> >> >> >> #3 0xc0966903 in vm_page_unwire (m=0xc2a38dc8, activate=0)
>> >> >> >> at /usr/src/sys/vm/vm_page.c:1905
>> >> >> > Please do "frame 2", then "p/x *m" and show the result.
>> >> >>
>> >> >> (kgdb) frame 2
>> >> > frame 3, sorry. "p/x *(struct vm_page *)0xc2a38dc8" will do it as well.
>> >>
>> >> (kgdb) frame 3
>> >> #3 0xc0966903 in vm_page_unwire (m=0xc2a38dc8, activate=0) at
>> >> /usr/src/sys/vm/vm_page.c:1905
>> >> 1905 panic("vm_page_unwire: page %p's wire count is
>> >> zero", m);
>> >> (kgdb) p/x *(struct vm_page *)0xc2a38dc8
>> >> $1 = {pageq = {tqe_next = 0xc2a38e10, tqe_prev = 0xc282a2b0}, listq =
>> >> {tqe_next = 0xc2a38e10, tqe_prev = 0xc282a2b8}, left = 0x0, right =
>> >> 0x0, object = 0xc5725770, pindex = 0xbd3, phys_addr = 0x56a32000, md =
>> >> {pv_list = {tqh_first = 0xc3cc6418, tqh_last = 0xc3cc641c},
>> >> pat_mode = 0x6}, queue = 0x1, segind = 0x2, hold_count = 0x0,
>> >> order = 0xb, pool = 0x0, cow = 0x0, wire_count = 0x0, aflags = 0x3,
>> >> flags = 0x0, oflags = 0x0, act_count = 0x5, busy = 0x0, valid = 0xff,
>> >> dirty = 0xff}
>> >
>> > Please show the output of "p *(struct vm_object *)0xc5725770" from kgdb.
>> >>
>> >>
>> >> >> #2 0xc071e82b in panic (fmt=Variable "fmt" is not available.) at
>> >> >> /usr/src/sys/kern/kern_shutdown.c:607
>> >> >> 607 kern_reboot(bootopt);
>> >> >> (kgdb) p/x *m
>> >> >> No symbol "m" in current context.
>> >> >>
>> >> >>
>> >> >> >> #4 0xc0796b80 in vfs_vmio_release (bp=0xde8bcbf4)
>> >> >> >> at /usr/src/sys/kern/vfs_bio.c:1638
>> >> >> >> #5 0xc0798813 in getnewbuf (vp=0xc6ea3550, slpflag=0, slptimeo=0,
>> >> >> >> size=16384, maxsize=16384, gbflags=0) at /usr/src/sys/kern/vfs_bio.c:1949
>> >> >> >> #6 0xc0799f2a in getblk (vp=0xc6ea3550, blkno=2520, size=16384, slpflag=0,
>> >> >> >> slptimeo=0, flags=Variable "flags" is not available.
>> >> >> >> ) at /usr/src/sys/kern/vfs_bio.c:2788
>> >> >> >> #7 0xc079d49c in cluster_rbuild (vp=0xc6ea3550, filesize=44505088, lbn=2520,
>> >> >> >> blkno=1209440, size=16384, run=Variable "run" is not available.
>> >> >> >> ) at /usr/src/sys/kern/vfs_cluster.c:332
>> >> >> >> #8 0xc079e145 in cluster_read (vp=0xc6ea3550, filesize=44505088,
>> >> >> >> lblkno=2520, size=16384, cred=0x0, totread=1024, seqcount=7,
>> >> >> >> bpp=0xf5824b60) at /usr/src/sys/kern/vfs_cluster.c:254
>> >> >> >> #9 0xc0934cf5 in ffs_read (ap=0xf5824bac)
>> >> >> >> at /usr/src/sys/ufs/ffs/ffs_vnops.c:514
>> >> >> >> #10 0xc09ccb92 in VOP_READ_APV (vop=0xc0aa6a80, a=0xf5824bac)
>> >> >> >> at vnode_if.c:887
>> >> >> >> #11 0xc07c1120 in vn_read (fp=0xc5474508, uio=0xf5824c48,
>> >> >> >> active_cred=0xc56a4d80, flags=1, td=0xc5b76b80) at vnode_if.h:384
>> >> >> >> #12 0xc076380e in dofileread (td=0xc5b76b80, fd=3, fp=0xc5474508,
>> >> >> >> auio=0xf5824c48, offset=41189376, flags=1) at file.h:254
>> >> >> >> #13 0xc07639f5 in kern_preadv (td=0xc5b76b80, fd=3, auio=0xf5824c48,
>> >> >> >> offset=41189376) at /usr/src/sys/kern/sys_generic.c:288
>> >> >> >> #14 0xc0763b0d in sys_pread (td=0xc5b76b80, uap=0xf5824cec)
>> >> >> >> at /usr/src/sys/kern/sys_generic.c:189
>> >> >> >> #15 0xc09accf5 in syscall (frame=0xf5824d28) at subr_syscall.c:131
>> >> >> >> #16 0xc0996db1 in Xint0x80_syscall ()
>> >> >> >> at /usr/src/sys/i386/i386/exception.s:266
>> >> >> >> #17 0x00000033 in ?? ()
>> >> >> >> Previous frame inner to this frame (corrupt stack?)
>> >> >> >>
>> >> >> >> --
>> >> >> >> Alexandr Kovalenko
>> >> >> >> http://uafug.org.ua/
>> >> >> >> _______________________________________________
>> >> >> >> freebsd-stable at freebsd.org mailing list
>> >> >> >> http://lists.freebsd.org/mailman/listinfo/freebsd-stable
>> >> >> >> To unsubscribe, send any mail to "freebsd-stable-unsubscribe at freebsd.org"
>> >> >> >
>> >> >>
>> >> >>
>> >> >>
>> >> >> --
>> >> >> Alexandr Kovalenko
>> >> >> http://uafug.org.ua/
>> >> >
>> >>
>> >>
>> >>
>> >> --
>> >> Alexandr Kovalenko
>> >> http://uafug.org.ua/
>> >
>>
>>
>>
>> --
>> Alexandr Kovalenko
>> http://uafug.org.ua/
>
>
>
--
Alexandr Kovalenko
http://uafug.org.ua/
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