Date: Thu, 29 Sep 2011 16:20:01 +0300 From: Alexandr Kovalenko <alexandr.kovalenko@gmail.com> To: Kostik Belousov <kostikbel@gmail.com> Cc: freebsd-current@freebsd.org, freebsd-stable@freebsd.org Subject: Re: stable/9 r225827 i386 panic: vm_page_unwire: page 0xc2a38dc8's wire count is zero Message-ID: <CAJDksDS4HKtCdkAcQzwZH%2BdNf4enEpjN-MX1DjC=_rc3annb_w@mail.gmail.com> In-Reply-To: <20110929131609.GP1511@deviant.kiev.zoral.com.ua> References: <CAJDksDQF1cdzy55ApzAUVmTMQdqoDGPirtT-4YZge8QMjOoN_A@mail.gmail.com> <20110929123011.GK1511@deviant.kiev.zoral.com.ua> <CAJDksDRHihwL5RBcjx=CmFbE8OGMLTBk8UuB2xXYdAOi3kUVDw@mail.gmail.com> <20110929124837.GM1511@deviant.kiev.zoral.com.ua> <CAJDksDQi1To_LYd63%2BZ2vhnKAXwRZzE7VVshsDAOW%2BM=_PzicA@mail.gmail.com> <20110929130058.GN1511@deviant.kiev.zoral.com.ua> <CAJDksDQKVo3da07wB57M8Hy3f7-cpdGNqfkz27pCh3hK7Ttxhw@mail.gmail.com> <20110929131609.GP1511@deviant.kiev.zoral.com.ua>
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2011/9/29 Kostik Belousov <kostikbel@gmail.com>:
> On Thu, Sep 29, 2011 at 04:12:19PM +0300, Alexandr Kovalenko wrote:
>> 2011/9/29 Kostik Belousov <kostikbel@gmail.com>:
>> > On Thu, Sep 29, 2011 at 03:51:53PM +0300, Alexandr Kovalenko wrote:
>> >> 2011/9/29 Kostik Belousov <kostikbel@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@gmail.=
com> wrote:
>> >> >> > On Thu, Sep 29, 2011 at 02:52:31PM +0300, Alexandr Kovalenko wro=
te:
>> >> >> >> 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_SOCK=
ETS
> in kernel config.
Sorry, didn't noticed that.
(kgdb) p *(struct vm_object *)0xc5725770
$1 =3D {mtx =3D {lock_object =3D {lo_name =3D 0xc0a3f26a "vm object", lo_fl=
ags
=3D 21168128, lo_data =3D 0, lo_witness =3D 0x0}, mtx_lock =3D 4}, object_l=
ist
=3D {tqe_next =3D 0xc5725110, tqe_prev =3D 0xc61714dc}, shadow_head =3D
{lh_first =3D 0x0}, shadow_list =3D {le_next =3D 0xc5af0c38,
le_prev =3D 0xc11ac704}, memq =3D {tqh_first =3D 0xc2dc5168, tqh_last =
=3D
0xc1719718}, root =3D 0xc2cf2fe8, size =3D 6576, generation =3D 1, ref_coun=
t
=3D 1, shadow_count =3D 0, memattr =3D 6 '\006', type =3D 1 '\001', flags =
=3D
12288, pg_color =3D 45335, paging_in_progress =3D 0,
resident_page_count =3D 6202, backing_object =3D 0x0,
backing_object_offset =3D 0, pager_object_list =3D {tqe_next =3D 0x0,
tqe_prev =3D 0x0}, rvq =3D {lh_first =3D 0x0}, cache =3D 0xc18f2390, handle=
=3D
0x0, un_pager =3D {vnp =3D {vnp_size =3D 66}, devp =3D {devp_pglist =3D
{tqh_first =3D 0x42,
tqh_last =3D 0x0}}, sgp =3D {sgp_pglist =3D {tqh_first =3D 0x42,
tqh_last =3D 0x0}}, swp =3D {swp_bcount =3D 66}}, cred =3D 0xc56a4280, char=
ge
=3D 26935296}
>
>>
>>
>>
>> >
>> >> >> >>
>> >> >> >> FreeBSD mile.xxx.ua 9.0-BETA3 FreeBSD 9.0-BETA3 #0 r225827: Wed=
Sep 28
>> >> >> >> 17:11:17 EEST 2011 =A0 =A0 root@mile.xxx.ua:/usr/obj/usr/src/sy=
s/mile-9
>> >> >> >> i386
>> >> >> >>
>> >> >> >> Unread portion of the kernel message buffer:
>> >> >> >> panic: vm_page_unwire: page 0xc2a38dc8's wire count is zero
>> >> >> >> cpuid =3D 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 =A0doadump (textdump=3D1) at pcpu.h:244
>> >> >> >> #1 =A00xc071e5cb in kern_reboot (howto=3D260)
>> >> >> >> =A0 =A0 at /usr/src/sys/kern/kern_shutdown.c:442
>> >> >> >> #2 =A00xc071e82b in panic (fmt=3DVariable "fmt" is not availabl=
e.
>> >> >> >> ) at /usr/src/sys/kern/kern_shutdown.c:607
>> >> >> >> #3 =A00xc0966903 in vm_page_unwire (m=3D0xc2a38dc8, activate=3D=
0)
>> >> >> >> =A0 =A0 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 w=
ell.
>> >>
>> >> (kgdb) frame 3
>> >> #3 =A00xc0966903 in vm_page_unwire (m=3D0xc2a38dc8, activate=3D0) at
>> >> /usr/src/sys/vm/vm_page.c:1905
>> >> 1905 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0panic("vm_page_unwire: pa=
ge %p's wire count is
>> >> zero", m);
>> >> (kgdb) p/x *(struct vm_page *)0xc2a38dc8
>> >> $1 =3D {pageq =3D {tqe_next =3D 0xc2a38e10, tqe_prev =3D 0xc282a2b0},=
listq =3D
>> >> {tqe_next =3D 0xc2a38e10, tqe_prev =3D 0xc282a2b8}, left =3D 0x0, rig=
ht =3D
>> >> 0x0, object =3D 0xc5725770, pindex =3D 0xbd3, phys_addr =3D 0x56a3200=
0, md =3D
>> >> {pv_list =3D {tqh_first =3D 0xc3cc6418, tqh_last =3D 0xc3cc641c},
>> >> =A0 =A0 pat_mode =3D 0x6}, queue =3D 0x1, segind =3D 0x2, hold_count =
=3D 0x0,
>> >> order =3D 0xb, pool =3D 0x0, cow =3D 0x0, wire_count =3D 0x0, aflags =
=3D 0x3,
>> >> flags =3D 0x0, oflags =3D 0x0, act_count =3D 0x5, busy =3D 0x0, valid=
=3D 0xff,
>> >> dirty =3D 0xff}
>> >
>> > Please show the output of "p *(struct vm_object *)0xc5725770" from kgd=
b.
>> >>
>> >>
>> >> >> #2 =A00xc071e82b in panic (fmt=3DVariable "fmt" is not available.)=
at
>> >> >> /usr/src/sys/kern/kern_shutdown.c:607
>> >> >> 607 =A0 =A0 =A0 =A0 =A0 =A0 kern_reboot(bootopt);
>> >> >> (kgdb) p/x *m
>> >> >> No symbol "m" in current context.
>> >> >>
>> >> >>
>> >> >> >> #4 =A00xc0796b80 in vfs_vmio_release (bp=3D0xde8bcbf4)
>> >> >> >> =A0 =A0 at /usr/src/sys/kern/vfs_bio.c:1638
>> >> >> >> #5 =A00xc0798813 in getnewbuf (vp=3D0xc6ea3550, slpflag=3D0, sl=
ptimeo=3D0,
>> >> >> >> =A0 =A0 size=3D16384, maxsize=3D16384, gbflags=3D0) at /usr/src=
/sys/kern/vfs_bio.c:1949
>> >> >> >> #6 =A00xc0799f2a in getblk (vp=3D0xc6ea3550, blkno=3D2520, size=
=3D16384, slpflag=3D0,
>> >> >> >> =A0 =A0 slptimeo=3D0, flags=3DVariable "flags" is not available=
.
>> >> >> >> ) at /usr/src/sys/kern/vfs_bio.c:2788
>> >> >> >> #7 =A00xc079d49c in cluster_rbuild (vp=3D0xc6ea3550, filesize=
=3D44505088, lbn=3D2520,
>> >> >> >> =A0 =A0 blkno=3D1209440, size=3D16384, run=3DVariable "run" is =
not available.
>> >> >> >> ) at /usr/src/sys/kern/vfs_cluster.c:332
>> >> >> >> #8 =A00xc079e145 in cluster_read (vp=3D0xc6ea3550, filesize=3D4=
4505088,
>> >> >> >> =A0 =A0 lblkno=3D2520, size=3D16384, cred=3D0x0, totread=3D1024=
, seqcount=3D7,
>> >> >> >> =A0 =A0 bpp=3D0xf5824b60) at /usr/src/sys/kern/vfs_cluster.c:25=
4
>> >> >> >> #9 =A00xc0934cf5 in ffs_read (ap=3D0xf5824bac)
>> >> >> >> =A0 =A0 at /usr/src/sys/ufs/ffs/ffs_vnops.c:514
>> >> >> >> #10 0xc09ccb92 in VOP_READ_APV (vop=3D0xc0aa6a80, a=3D0xf5824ba=
c)
>> >> >> >> =A0 =A0 at vnode_if.c:887
>> >> >> >> #11 0xc07c1120 in vn_read (fp=3D0xc5474508, uio=3D0xf5824c48,
>> >> >> >> =A0 =A0 active_cred=3D0xc56a4d80, flags=3D1, td=3D0xc5b76b80) a=
t vnode_if.h:384
>> >> >> >> #12 0xc076380e in dofileread (td=3D0xc5b76b80, fd=3D3, fp=3D0xc=
5474508,
>> >> >> >> =A0 =A0 auio=3D0xf5824c48, offset=3D41189376, flags=3D1) at fil=
e.h:254
>> >> >> >> #13 0xc07639f5 in kern_preadv (td=3D0xc5b76b80, fd=3D3, auio=3D=
0xf5824c48,
>> >> >> >> =A0 =A0 offset=3D41189376) at /usr/src/sys/kern/sys_generic.c:2=
88
>> >> >> >> #14 0xc0763b0d in sys_pread (td=3D0xc5b76b80, uap=3D0xf5824cec)
>> >> >> >> =A0 =A0 at /usr/src/sys/kern/sys_generic.c:189
>> >> >> >> #15 0xc09accf5 in syscall (frame=3D0xf5824d28) at subr_syscall.=
c:131
>> >> >> >> #16 0xc0996db1 in Xint0x80_syscall ()
>> >> >> >> =A0 =A0 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@freebsd.org mailing list
>> >> >> >> http://lists.freebsd.org/mailman/listinfo/freebsd-stable
>> >> >> >> To unsubscribe, send any mail to "freebsd-stable-unsubscribe@fr=
eebsd.org"
>> >> >> >
>> >> >>
>> >> >>
>> >> >>
>> >> >> --
>> >> >> Alexandr Kovalenko
>> >> >> http://uafug.org.ua/
>> >> >
>> >>
>> >>
>> >>
>> >> --
>> >> Alexandr Kovalenko
>> >> http://uafug.org.ua/
>> >
>>
>>
>>
>> --
>> Alexandr Kovalenko
>> http://uafug.org.ua/
>
>
>
--=20
Alexandr Kovalenko
http://uafug.org.ua/
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