Hi!
I had something very similar on 95% full hammer FS with version of FS =3D 1=
..
After upgrading it to v2 panics vent away.
dennis@dfly (xterm) > uname -srip
DragonFly 2.3.1-DEVELOPMENT i386 GENERIC
As of 05/Jul/2009
Like:
# hammer version-upgrade /mnt/big_plate 2
Also here are some interesting lines in /var/log/messages, possibly
indicating corrupted media:
Sep 16 01:22:42 dfly kernel: ad4: WARNING - WRITE_DMA UDMA ICRC error
(retrying request) LBA=3D92046464
Sep 16 01:26:18 dfly syslogd: kernel boot file is /boot/kernel
Sep 16 01:26:18 dfly kernel: ad4: FAILURE - device detached
Sep 16 01:26:18 dfly kernel: subdisk4: detached
Sep 16 01:26:18 dfly kernel: HAMMER(Share_Big): Critical error
inode=3D-1 while flushing meta-data
Sep 16 01:26:18 dfly kernel: HAMMER(Share_Big): Forcing read-only mode
Sep 16 01:26:18 dfly kernel: HAMMER(Share_Big): Critical error
inode=3D-1 while flushing meta-data
Sep 16 01:26:18 dfly last message repeated 6 times
Sep 16 01:26:18 dfly kernel: ad4: detached
.......
Sep 16 01:26:18 dfly kernel: Fatal trap 12: page fault while in kernel mode
Sep 16 01:26:18 dfly kernel: fault virtual address =3D 0xa4
Sep 16 01:26:18 dfly kernel: fault code =3D supervisor write,
page not present
.......
Sep 16 01:26:18 dfly kernel: processor eflags =3D interrupt enabled,
resume, IOPL =3D 0
Sep 16 01:26:18 dfly kernel: current process =3D Idle
Sep 16 01:26:18 dfly kernel: current thread =3D pri 46 (CRIT)
.......
Sep 16 01:26:18 dfly kernel:
Sep 16 01:26:18 dfly kernel: syncing disks... 439 HAMMER(Share_Big):
Critical error inode=3D-1 while flushing meta-data
2009/9/16 Eugene <dfuser@medcom.com.ua>:
> Hello again.
>
> Simon 'corecode' Schubert wrote:
>>
>> Best update to latest master, there were many fixes since August.
>
> Now I've an updated kernel with sources from 13-sep-2009:
> DragonFly diana.medcom.com.ua 2.3.2-DEVELOPMENT DragonFly 2.3.2-DEVELOPME=
NT
> #1: Tue Sep 15 17:23:22 EEST 2009
> root@diana.medcom.com.ua:/usr/obj/usr/src/sys/CUSTOM =C2=A0i386
>
> but the "panic" message greeted me this morning:
>
> panic: assertion: cursor->trans->sync_lock_refs > 0 in hammer_recover_cur=
sor
> Trace beginning at frame 0xd75ca708
> panic(d75ca72c,d75ca7a8,d75ca88c,d75ca804,d75ca738) at panic+0x8c
> panic(c05ac924,c0617e20,c059441c,d75ca7a8,d75ca99c) at panic+0x8c
> hammer_recover_cursor(d75ca7a8,b,8,d75ca768,c04acd05) at
> hammer_recover_cursor+0x2c
> hammer_ioc_mirror_write(d75caa74,d2d28550,c2a727f8,d75ca9d8,c0394328) at
> hammer_ioc_mirror_write+0x947
> hammer_ioctl(d2d28550,c0c46808,c2a727f8,1,c29a7768) at hammer_ioctl+0x8f8
> hammer_vop_ioctl(d75caad0,c067a1e0,d4ae7050,d75caaec,c0345eaa) at
> hammer_vop_ioctl+0x2f
> vop_ioctl(d4ae7050,c2b145e8,c0c46808,c2a727f8,1) at vop_ioctl+0x3e
> vn_ioctl(d0291928,c0c46808,c2a727f8,c29a7768,d75cacf0) at vn_ioctl+0xe0
> mapped_ioctl(3,c0c46808,bfbffa14,0,d75cacf0) at mapped_ioctl+0x3e7
> sys_ioctl(d75cacf0,6,1b88a2c3,0,d2aed218) at sys_ioctl+0x17
> syscall2(d75cad40) at syscall2+0x1ef
> Xint0x80_syscall() at Xint0x80_syscall+0x36
> Debugger("panic")
>
> a partly backtrace is:
>
> #11 0xc04b0f8c in hammer_recover_cursor (cursor=3D0xd75ca7a8)
> =C2=A0 at /usr/src/sys/vfs/hammer/hammer_cursor.c:591
> 591 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 KKASSERT(cursor->trans->syn=
c_lock_refs > 0);
> (kgdb) list
> 586 =C2=A0 =C2=A0 hammer_recover_cursor(hammer_cursor_t cursor)
> 587 =C2=A0 =C2=A0 {
> 588 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 int error;
> 589
> 590 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 hammer_unlock_cursor(cursor=
);
> 591 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 KKASSERT(cursor->trans->syn=
c_lock_refs > 0);
> 592
> 593 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 /*
> 594 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0* Wait for the deadlo=
ck to clear
> 595 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0*/
>
> (kgdb) print cursor
> $1 =3D (hammer_cursor_t) 0xd75ca7a8
> (kgdb) print cursor->trans
> $2 =3D (hammer_transaction_t) 0xd75caa74
> (kgdb) print cursor->trans->sync_lock_refs
> $3 =3D 0
>
> #12 0xc04ba517 in hammer_ioc_mirror_write (trans=3D0xd75caa74, ip=3D0xd2d=
28550,
> =C2=A0 mirror=3D0xc2a727f8) at /usr/src/sys/vfs/hammer/hammer_mirror.c:46=
9
> 469 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 hammer_recover_cur=
sor(&cursor);
> (kgdb) list
> 464 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
=C2=A0* Retry the current record on deadlock, otherwise
> setup
> 465 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
=C2=A0* for the next loop.
> 466 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
=C2=A0*/
> 467 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
if (error =3D=3D EDEADLK) {
> 468 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
=C2=A0 =C2=A0 =C2=A0 =C2=A0 while (error =3D=3D EDEADLK) {
> 469 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 hammer_recover_cur=
sor(&cursor);
> 470 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 error =3D
> hammer_cursor_upgrade(&cursor);
> 471 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
=C2=A0 =C2=A0 =C2=A0 =C2=A0 }
> 472 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
} else {
> 473 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
=C2=A0 =C2=A0 =C2=A0 =C2=A0 if (error =3D=3D EALREADY)
>
> #13 0xc04b97dc in hammer_ioctl (ip=3D0xd2d28550, com=3D3234097160,
> =C2=A0 data=3D0xc2a727f8 "", fflag=3D1, cred=3D0xc29a7768)
> =C2=A0 at /usr/src/sys/vfs/hammer/hammer_ioctl.c:134
> 134 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
=C2=A0 =C2=A0 =C2=A0 =C2=A0 error =3D hammer_ioc_mirror_write(&trans, ip,
> (kgdb) list
> 129 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 (str=
uct hammer_ioc_mirror_rw
> *)data);
> 130 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
}
> 131 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
break;
> 132 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 case HAMMERIOC_MIRROR_WRITE=
:
> 133 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
if (error =3D=3D 0) {
> 134 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
=C2=A0 =C2=A0 =C2=A0 =C2=A0 error =3D hammer_ioc_mirror_write(&trans, ip,
> 135 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 (str=
uct hammer_ioc_mirror_rw
> *)data);
> 136 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
}
> 137 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
break;
> 138 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 case HAMMERIOC_GET_VERSION:
>
> #14 0xc04c94de in hammer_vop_ioctl (ap=3D0xd75caad0)
> =C2=A0 at /usr/src/sys/vfs/hammer/hammer_vnops.c:2305
> 2305 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0return(hammer_ioctl(ip, ap-=
>a_command, ap->a_data,
> (kgdb) list
> 2300 =C2=A0 =C2=A0hammer_vop_ioctl(struct vop_ioctl_args *ap)
> 2301 =C2=A0 =C2=A0{
> 2302 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0struct hammer_inode *ip =3D=
ap->a_vp->v_data;
> 2303
> 2304 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0++hammer_stats_file_iopsr;
> 2305 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0return(hammer_ioctl(ip, ap-=
>a_command, ap->a_data,
> 2306 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0ap->a_fflag, ap->a_cred));
> 2307 =C2=A0 =C2=A0}
> 2308
>
> #15 0xc03940ae in vop_ioctl (ops=3D0xd4ae7050, vp=3D0xc2b145e8,
> =C2=A0 command=3D3234097160, data=3D0xc2a727f8 "", fflag=3D1, cred=3D0xc2=
9a7768,
> =C2=A0 msg=3D0xd75cacf0) at /usr/src/sys/kern/vfs_vopops.c:376
> 376 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 DO_OPS(ops, error, &ap, vop=
_ioctl);
> (kgdb) list
> 371 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 ap.a_data =3D data;
> 372 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 ap.a_fflag =3D fflag;
> 373 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 ap.a_cred =3D cred;
> 374 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 ap.a_sysmsg =3D msg;
> 375
> 376 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 DO_OPS(ops, error, &ap, vop=
_ioctl);
> 377 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 return(error);
> 378 =C2=A0 =C2=A0 }
> 379
>
> #16 0xc0393bed in vn_ioctl (fp=3D0xd0291928, com=3D3234097160, data=3D0xc=
2a727f8
> "",
> =C2=A0 ucred=3D0xc29a7768, msg=3D0xd75cacf0) at /usr/src/sys/kern/vfs_vno=
ps.c:938
> 938 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
error =3D VOP_IOCTL(vp, com, data, fp->f_flag, ucred,
> msg);
> (kgdb) list
> 933 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
=C2=A0 =C2=A0 =C2=A0 =C2=A0 }
> 934 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
=C2=A0 =C2=A0 =C2=A0 =C2=A0 *(int *)data =3D dev_dflags(vp->v_rdev) &
> D_TYPEMASK;
> 935 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
=C2=A0 =C2=A0 =C2=A0 =C2=A0 error =3D 0;
> 936 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
=C2=A0 =C2=A0 =C2=A0 =C2=A0 break;
> 937 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
}
> 938 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
error =3D VOP_IOCTL(vp, com, data, fp->f_flag, ucred,
> msg);
> 939 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
if (error =3D=3D 0 && com =3D=3D TIOCSCTTY) {
> 940 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
=C2=A0 =C2=A0 =C2=A0 =C2=A0 struct proc *p =3D curthread->td_proc;
> 941 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=
=C2=A0 =C2=A0 =C2=A0 =C2=A0 struct session *sess;
>
> --
> Sorry for my poor English.
>
--=20
Dennis Melentyev