From mboxrd@z Thu Jan 1 00:00:00 1970 From: Konrad Rzeszutek Wilk Subject: Re: Re: [b.g.o.358549] blkfront: Move blkif_interrupt into a tasklet. Date: Thu, 5 May 2011 17:22:45 -0400 Message-ID: <20110505212245.GA14953@dumpdata.com> References: <4DC15DC8.2010302@mejor.pl> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Return-path: Content-Disposition: inline In-Reply-To: <4DC15DC8.2010302@mejor.pl> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Marcin =?utf-8?B?TWlyb3PFgmF3?= , daniel.stodden@citrix.com, Jeremy Fitzhardinge Cc: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org On Wed, May 04, 2011 at 04:08:08PM +0200, Marcin Miros=C5=82aw wrote: > Hello! > I'm hitted by issue described there: > http://lists.xensource.com/archives/html/xen-devel/2010-09/msg00164.htm= l > . I'm using 32bit guest (no SMP) on 64 xen-server. On hardened-kernel > (grsec)-2.6.{35,36} there is silence in dmesg (i don't remember what wa= s > going on on earlier kernels). On hardened-kernel-2.6.{37,38} and on > vanilla-kernel-2.6.{37,38,39} and git-sources-2.6.39_rc5-r7 problem exi= sts. Do you always get this when you try to mount a filesystem with barriers? And do you see this _only_ with 32-bit guests, but not with 64-= bit ones? > Here is link to gentoo bugzilla entry: http://bugs.gentoo.org/358549 . > If any information could be usefull please let me know. > Thanks for help! > Marcin >=20 >=20 >=20 > [ 71.870518] ------------[ cut here ]------------ > [ 71.870529] WARNING: at block/blk-core.c:239 blk_start_queue+0x20/0x= 32() > [ 71.870532] Modules linked in: iptable_filter xt_iprange tun sit tun= nel4 > xt_TCPMSS ip6table_mangle nf_conntrack_ipv6 nf_defrag_ipv6 xt_state ip6= t_rt > ip6table_filter xt_owner xt_NFQUEUE xt_multiport xt_mark xt_hashlimit > xt_connmark ip6_tables fuse usbcore > [ 71.870578] Pid: 0, comm: swapper Tainted: G W > 2.6.39-rc5-git7 #1 > [ 71.870581] Call Trace: > [ 71.870588] [] warn_slowpath_common+0x65/0x7a > [ 71.870593] [] ? blk_start_queue+0x20/0x32 > [ 71.870598] [] warn_slowpath_null+0xf/0x13 > [ 71.870602] [] blk_start_queue+0x20/0x32 > [ 71.870608] [] kick_pending_request_queues+0x1c/0x2a > [ 71.870613] [] blkif_interrupt+0x1c5/0x1db > [ 71.870619] [] handle_irq_event_percpu+0x28/0x114 > [ 71.870624] [] handle_irq_event+0x1c/0x28 > [ 71.870628] [] handle_fasteoi_irq+0x59/0x6f > [ 71.870633] [] __xen_evtchn_do_upcall+0x10f/0x198 > [ 71.870638] [] xen_evtchn_do_upcall+0x19/0x27 > [ 71.870644] [] xen_do_upcall+0x7/0xc > [ 71.870650] [] ? posix_clock_release+0x23/0x35 > [ 71.870655] [] ? hypercall_page+0x3a7/0x1000 > [ 71.870660] [] ? xen_safe_halt+0x12/0x1d > [ 71.870665] [] default_idle+0x2c/0x4c > [ 71.870670] [] cpu_idle+0x74/0x8e > [ 71.870676] [] rest_init+0x52/0x54 > [ 71.870680] [] start_kernel+0x29d/0x2a4 > [ 71.870685] [] i386_start_kernel+0x65/0x67 > [ 71.870690] [] xen_start_kernel+0x568/0x570 > [ 71.870693] ---[ end trace 5c490816ac9331f5 ]--- >=20 > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel