Hi there, excited that the cachefiles made it into mainline, I've mounted an NFS share with "-o fsc". After a clean reboot, I only need to read some files off the NFS mount to get the following trace: [ 399.332262] Pid: 709, comm: kslowd Tainted: G W 2.6.30 #1 [ 399.332275] Call Trace: [ 399.332288] [<ffffffff811e2e5b>] ? __wait_on_bit+0x6b/0x80 [ 399.332301] [<ffffffffa00c67b6>] ? cachefiles_read_waiter+0x96/0xe0 [cachefiles] [ 399.332314] [<ffffffff8100dc70>] ? check_events+0x12/0x22 [ 399.332322] [<ffffffff81028100>] ? __wake_up_common+0x50/0x80 [ 399.332330] [<ffffffff8102814c>] ? __wake_up+0x1c/0x30 [ 399.332338] [<ffffffff81040a33>] ? __wake_up_bit+0x23/0x30 [ 399.332346] [<ffffffff810da03a>] ? ext3_truncate+0x26a/0x9e0 [ 399.332354] [<ffffffff8100dc0c>] ? xen_irq_enable_direct+0xc/0x13 [ 399.332362] [<ffffffff810e943a>] ? journal_stop+0x17a/0x240 [ 399.332370] [<ffffffff8100d5d9>] ? xen_force_evtchn_callback+0x9/0x10 [ 399.332377] [<ffffffff8100dc70>] ? check_events+0x12/0x22 [ 399.332385] [<ffffffff8106cbf5>] ? vmtruncate+0xa5/0x110 [ 399.332393] [<ffffffff81098b0e>] ? inode_setattr+0x2e/0x170 [ 399.332400] [<ffffffff810d735f>] ? ext3_setattr+0xff/0x230 [ 399.332407] [<ffffffff81098d5e>] ? notify_change+0x10e/0x350 [ 399.332414] [<ffffffff8100dc5d>] ? xen_restore_fl_direct_end+0x0/0x1 [ 399.332424] [<ffffffffa00c35ec>] ? cachefiles_attr_changed+0xec/0x190 [cachefiles] [ 399.332434] [<ffffffffa00c3caf>] ? cachefiles_lookup_object+0x5f/0x110 [cachefiles] [ 399.332450] [<ffffffffa005a1c0>] ? fscache_lookup_object+0x80/0x150 [fscache] [ 399.332461] [<ffffffffa005aabe>] ? fscache_object_slow_work_execute+0x58e/0x670 [fscache] [ 399.332472] [<ffffffff81057b2d>] ? slow_work_thread+0x2ed/0x430 [ 399.332480] [<ffffffff81040a80>] ? autoremove_wake_function+0x0/0x30 [ 399.332488] [<ffffffff81057840>] ? slow_work_thread+0x0/0x430 [ 399.332495] [<ffffffff810405f6>] ? kthread+0x96/0xa0 [ 399.332502] [<ffffffff8102afcd>] ? T.831+0x2d/0x80 [ 399.332510] [<ffffffff81010a8a>] ? child_rip+0xa/0x20 [ 399.332517] [<ffffffff810105db>] ? retint_restore_args+0x5/0x6 [ 399.332525] [<ffffffff811846a0>] ? datagram_poll+0x0/0xe0 [ 399.332533] [<ffffffff811846a0>] ? datagram_poll+0x0/0xe0 [ 399.332539] [<ffffffff81010a80>] ? child_rip+0x0/0x20 [ 399.332608] CacheFiles: I/O Error: Readpage failed on backing file 4000000000000810 [ 399.332617] FS-Cache: Cache cachefiles stopped due to I/O error This is reproducible with a current (-git) vanilla kernel, cachefilesd-0.9-2 (Debian/unstable) in a 64 bit Xen DomU. I've seen a simlar thing reported on the linux-cachefs list in May: http://www.redhat.com/archives/linux-cachefs/2009-May/msg00018.html ...where the backtrace looks similar, but mine has some Xen stuff in between. Full dmesg & .config and /proc bits are here: http://nerdbynature.de/bits/2.6.30/ Thanks, Christian. -- BOFH excuse #55: Plumber mistook routing panel for decorative wall fixture -- Linux-cachefs mailing list Linux-cachefs@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cachefs
