Date: Thu, 24 Jul 2014 22:30:48 +0300 From: Konstantin Belousov <kostikbel@gmail.com> To: Harald Schmalzbauer <h.schmalzbauer@omnilan.de> Cc: FreeBSD Stable <freebsd-stable@freebsd.org> Subject: Re: panic/lock on 9.3-RELEASE with nullfs/nfs/zfs combination Message-ID: <20140724193048.GU93733@kib.kiev.ua> In-Reply-To: <53D1503B.2030200@omnilan.de> References: <53D12973.3010805@omnilan.de> <20140724165917.GT93733@kib.kiev.ua> <53D1503B.2030200@omnilan.de>
next in thread | previous in thread | raw e-mail | index | archive | help
--aw451JwZw0N/VzGo Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Jul 24, 2014 at 08:28:11PM +0200, Harald Schmalzbauer wrote: > Bez??glich Konstantin Belousov's Nachricht vom 24.07.2014 18:59 > (localtime): > > ??? > > The lockmgr flags are LK_SHARE | LK_RETRY, and error 11 =3D=3D EDEADLK > > indicates that the lock is already taken by the curthread in the > > exclusive mode. I am interested in what line of code did the locking. > > > > Add ddb, INVARIANTS, WITNESS and DEBUG_VFS_LOCKS options to the kernel > > config, reproduce the issue and, after the panic occured and you > > get at the ddb prompt, issue command 'show alllocks'. > > > > Also, do 'show mount', after which do 'show mount <addr>', where <addr> > > is the address of your nullfs mount point, printed by 'show mount'. > > > > I need all console output starting from the panic message. >=20 > FreeBSD/amd64 (mira.inop.mo1.omnilan.net) (ttyu0) >=20 > login: panic: LK_RETRY set with incompatible flags (0x200400) or an > error occured (11) > cpuid =3D 1 > KDB: stack backtrace: > db_trace_self_wrapper() at db_trace_self_wrapper+0x2a/frame > 0xffffff82e565fc70 > kdb_backtrace() at kdb_backtrace+0x37/frame 0xffffff82e565fd30 > panic() at panic+0x1cd/frame 0xffffff82e565fe30 > _vn_lock() at _vn_lock+0x77/frame 0xffffff82e565fe90 > zfs_lookup() at zfs_lookup+0x420/frame 0xffffff82e565ff20 > zfs_freebsd_lookup() at zfs_freebsd_lookup+0xa6/frame 0xffffff82e5660070 > VOP_CACHEDLOOKUP_APV() at VOP_CACHEDLOOKUP_APV+0x102/frame > 0xffffff82e56600a0 > vfs_cache_lookup() at vfs_cache_lookup+0xff/frame 0xffffff82e5660110 > VOP_LOOKUP_APV() at VOP_LOOKUP_APV+0x102/frame 0xffffff82e5660140 > null_lookup() at null_lookup+0x92/frame 0xffffff82e56601c0 > VOP_LOOKUP_APV() at VOP_LOOKUP_APV+0x102/frame 0xffffff82e56601f0 > lookup() at lookup+0x32f/frame 0xffffff82e5660290 > namei() at namei+0x3df/frame 0xffffff82e5660340 > vn_open_cred() at vn_open_cred+0x1e2/frame 0xffffff82e56604b0 > vop_stdvptocnp() at vop_stdvptocnp+0x1af/frame 0xffffff82e56607e0 > null_vptocnp() at null_vptocnp+0xf5/frame 0xffffff82e5660850 > VOP_VPTOCNP_APV() at VOP_VPTOCNP_APV+0x105/frame 0xffffff82e5660880 > vn_vptocnp_locked() at vn_vptocnp_locked+0x15b/frame 0xffffff82e5660910 > vn_fullpath1() at vn_fullpath1+0x100/frame 0xffffff82e5660970 > kern___getcwd() at kern___getcwd+0xd4/frame 0xffffff82e56609d0 > amd64_syscall() at amd64_syscall+0x318/frame 0xffffff82e5660af0 > Xfast_syscall() at Xfast_syscall+0xf7/frame 0xffffff82e5660af0 > --- syscall (326, FreeBSD ELF64, sys___getcwd), rip =3D 0x8011a191c, rsp = =3D > 0x7fffffffe658, rbp =3D 0x801873400 --- > KDB: enter: panic > [ thread pid 1918 tid 100919 ] > Stopped at kdb_enter+0x3b: movq $0,0x645622(%rip) > db> show alllocks > db> <???nothing You do not have WITNESS in your kernel config, most likely. --aw451JwZw0N/VzGo Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBAgAGBQJT0V7oAAoJEJDCuSvBvK1BcDoP/34TDoNILuZpYaG5NhPWacOy kLo+vWzv9tfVNV++LQWtCe1RyX9v/LsywL9hXGSN7LGiNbZqPyHoexd7OB4OST5X kdiLRGOgRmJr+26ICEV5aGTq1B8dIYevAxwYDarDOFDLaJCcaer0tJPXclImiOGd kCLuD/A9kNfOUCBuR/+Bmq50qD68cqhYPA5xh/1lF2nHmvTv3fbQZqv1X3sT2Zy9 UWJA6UpTiClpqJ6iDajSZhnBC250Dggliq6Vx6sI7vK/ZubLDWXERzhklzS54Ykh MxFnCyiXzakK9ZxfJJbpEvBAa2PkIDMJI0I2OxYcufejjwuYa31wx51qAsLvTEsJ ZX9/maUKZgLki8FN2FqAw2y84PZDLDilZP9YtwKAjcLXKjwoEIdVDMH8FvKYQxVA z0zIR1LMp03PHw7TNr6rjj4uxbfzIeU+Fboc0rWOItMcJM7s+pCknT1tnFTKPwM4 ZYDCV8TT+YhtZmTMijE2Ai7nR0jvc6E7eSUnz9v+SpCiWi9tQrafeB63suTj6QIJ w9DJuW/XwasVz2ZivI+PCGxAP+pUt48VvkheLqW8HIctdkOo5ghHkT1hkKyyqzl4 cDt+m2DsYYmiF969DD5REhZ9DsL2/rdZr3cW+WBngiQu7fFzvsnnO0LiYE0FYHf3 uZ/FukCCXf8NHZ87L5tl =7NJe -----END PGP SIGNATURE----- --aw451JwZw0N/VzGo--
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20140724193048.GU93733>