[Linux-cachefs] Read from cache error, can't read from cache data

[Duc Le Minh]

FS-Cache: Netfs 'nfs' registered for caching
mtrr: type mismatch for d0000000,1000000 old: write-back new:
write-combining
Pid: 4765, comm: kslowd Not tainted 2.6.30.1 #1
Call Trace:
 [<ffffffffa0331d7a>] ? cachefiles_read_waiter+0xd9/0x147 [cachefiles]
 [<ffffffff804b74bd>] ? __wait_on_bit+0x60/0x6f
 [<ffffffff8022bbbb>] ? __wake_up_common+0x3f/0x71
 [<ffffffff8022cc32>] ? __wake_up+0x30/0x44
 [<ffffffff8024a41f>] ? __wake_up_bit+0x28/0x2d
 [<ffffffffa003a793>] ? ext3_truncate+0x4d7/0x8ed [ext3]
 [<ffffffff80281f90>] ? pagevec_lookup+0x17/0x1f
 [<ffffffff8028c2ff>] ? unmap_mapping_range+0x59/0x1ff
 [<ffffffff8022cc32>] ? __wake_up+0x30/0x44
 [<ffffffff8028e286>] ? vmtruncate+0xc2/0xe2
 [<ffffffff802b82cf>] ? inode_setattr+0x22/0x10a
 [<ffffffffa003baa5>] ? ext3_setattr+0x17b/0x1e6 [ext3]
 [<ffffffff802b853d>] ? notify_change+0x186/0x2c9
 [<ffffffffa032d9de>] ? cachefiles_attr_changed+0x133/0x1cd [cachefiles]
 [<ffffffffa032df7f>] ? cachefiles_lookup_object+0xcf/0x12a [cachefiles]
 [<ffffffffa0318165>] ? fscache_lookup_object+0x110/0x122 [fscache]
 [<ffffffffa03188c3>] ? fscache_object_slow_work_execute+0x590/0x6bc
[fscache]
 [<ffffffff80278f82>] ? slow_work_thread+0x285/0x43a
 [<ffffffff8024a446>] ? autoremove_wake_function+0x0/0x2e
 [<ffffffff80278cfd>] ? slow_work_thread+0x0/0x43a
 [<ffffffff8024a317>] ? kthread+0x54/0x81
 [<ffffffff8020c93a>] ? child_rip+0xa/0x20
 [<ffffffff8024a2c3>] ? kthread+0x0/0x81
 [<ffffffff8020c930>] ? child_rip+0x0/0x20
CacheFiles: I/O Error: Readpage failed on backing file 200000000000810
FS-Cache: Cache cachefiles stopped due to I/O error
[root at localhost ~]#
FS-Cache: Netfs 'nfs' registered for caching
mtrr: type mismatch for d0000000,1000000 old: write-back new:
write-combining
Pid: 4765, comm: kslowd Not tainted 2.6.30.1 #1
Call Trace:
 [<ffffffffa0331d7a>] ? cachefiles_read_waiter+0xd9/0x147 [cachefiles]
 [<ffffffff804b74bd>] ? __wait_on_bit+0x60/0x6f
 [<ffffffff8022bbbb>] ? __wake_up_common+0x3f/0x71
 [<ffffffff8022cc32>] ? __wake_up+0x30/0x44
 [<ffffffff8024a41f>] ? __wake_up_bit+0x28/0x2d
 [<ffffffffa003a793>] ? ext3_truncate+0x4d7/0x8ed [ext3]
 [<ffffffff80281f90>] ? pagevec_lookup+0x17/0x1f
 [<ffffffff8028c2ff>] ? unmap_mapping_range+0x59/0x1ff
 [<ffffffff8022cc32>] ? __wake_up+0x30/0x44
 [<ffffffff8028e286>] ? vmtruncate+0xc2/0xe2
 [<ffffffff802b82cf>] ? inode_setattr+0x22/0x10a
 [<ffffffffa003baa5>] ? ext3_setattr+0x17b/0x1e6 [ext3]
 [<ffffffff802b853d>] ? notify_change+0x186/0x2c9
 [<ffffffffa032d9de>] ? cachefiles_attr_changed+0x133/0x1cd [cachefiles]
 [<ffffffffa032df7f>] ? cachefiles_lookup_object+0xcf/0x12a [cachefiles]
 [<ffffffffa0318165>] ? fscache_lookup_object+0x110/0x122 [fscache]
 [<ffffffffa03188c3>] ? fscache_object_slow_work_execute+0x590/0x6bc
[fscache]
 [<ffffffff80278f82>] ? slow_work_thread+0x285/0x43a
 [<ffffffff8024a446>] ? autoremove_wake_function+0x0/0x2e
 [<ffffffff80278cfd>] ? slow_work_thread+0x0/0x43a
 [<ffffffff8024a317>] ? kthread+0x54/0x81
 [<ffffffff8020c93a>] ? child_rip+0xa/0x20
 [<ffffffff8024a2c3>] ? kthread+0x0/0x81
 [<ffffffff8020c930>] ? child_rip+0x0/0x20
CacheFiles: I/O Error: Readpage failed on backing file 200000000000810
FS-Cache: Cache cachefiles stopped due to I/O error
[root at localhost ~]#