Date: Thu, 20 Apr 2006 19:25:33 -0400 From: Kris Kennaway <kris@obsecurity.org> To: David Xu <davidxu@freebsd.org> Cc: Daniel Eischen <deischen@freebsd.org>, Kris Kennaway <kris@obsecurity.org>, freebsd-sparc64@freebsd.org, freebsd-threads@freebsd.org Subject: Re: pthread_mutex_timedlock on sparc64 Message-ID: <20060420232533.GA32046@xor.obsecurity.org> In-Reply-To: <200604210717.22947.davidxu@freebsd.org> References: <20060418204240.GA69833@xor.obsecurity.org> <20060420074713.Y52948@hades.admin.frm2> <20060420182331.GA26174@xor.obsecurity.org> <200604210717.22947.davidxu@freebsd.org>
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--/04w6evG8XlLl3ft Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Apr 21, 2006 at 07:17:22AM +0800, David Xu wrote: > On Friday 21 April 2006 02:23, Kris Kennaway wrote: >=20 > > Hopefully David or someone will be able to look at the WITNESS panics > > from libthr on sparc soon. Then we can make libthr the default on > > FreeBSD 6.x as well. > > > > In the meantime, you might be able to force the port to use libthr on > > 5.x/6.x, but this may not work since you typically encounter problems > > if different thread libraries are mixed in the same binary. If not, > > the port should probably be marked BROKEN on sparc/5.x and 6.x until > > the change can be made. > > > > Kris >=20 > Do you have WITNESS backtrace ? I don't have sparc hardware. Actually I mis-remembered a bit. > panic: _mtx_lock_sleep: recursed on non-recursive mutex system map @ ../.= ./../vm/vm_map.c:2993 > panic() at panic+0x164 > _mtx_lock_sleep() at _mtx_lock_sleep+0x40 > _mtx_lock_flags() at _mtx_lock_flags+0x98 > _vm_map_lock_read() at _vm_map_lock_read+0x1c > vm_map_lookup() at vm_map_lookup+0x1c > vm_fault() at vm_fault+0x68 > trap_pfault() at trap_pfault+0x1a8 > trap() at trap+0x2b0 > -- fast data access mmu miss tar=3D0xe85a6000 %o7=3D0xc02f3b08 -- > vm_map_entry_splay() at vm_map_entry_splay+0x10 > vm_map_find() at vm_map_find+0x34 > kmem_alloc_nofault() at kmem_alloc_nofault+0x44 > vm_thread_new() at vm_thread_new+0x44 > thread_init() at thread_init+0x8 > slab_zalloc() at slab_zalloc+0x264 > uma_zone_slab() at uma_zone_slab+0x1ac > uma_zalloc_bucket() at uma_zalloc_bucket+0x1b4 > uma_zalloc_arg() at uma_zalloc_arg+0x398 > thread_alloc() at thread_alloc+0x18 > create_thread() at create_thread+0x78 > thr_new() at thr_new+0x64 > syscall() at syscall+0x2dc > -- syscall (455, FreeBSD ELF64, thr_new) %o7=3D0x40348e7c -- It may be a deeper vm problem. Kris --/04w6evG8XlLl3ft Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.3 (FreeBSD) iD8DBQFESBhtWry0BWjoQKURAt5YAJ0dj2z9w2Ckg0XVxt2pdfx+P28gNgCg4YnC 59a5tyrYzLWjzrzJ9PdlpaA= =K6fC -----END PGP SIGNATURE----- --/04w6evG8XlLl3ft--
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