[Xen-devel] Linux 3.1 domU + ext3 = WARNING: at fs/ext3/inode.c

["Christopher S. Aker" <caker@xxxxxxxxxxxx>]

Either right on boot, or shortly thereafter, the following occurs with 
either writeback or ordered filesystems.  Multiple reports, all 
different machines, different users...  Some people had success after I 
changed CONFIG_EXT3_DEFAULTS_TO_ORDERED off, however some still had 
problems...  That was my only config change from 3.0.4.  Them rebooting 
back into 3.0.4 fixed it.

------------[ cut here ]------------
WARNING: at fs/ext3/inode.c:1620 ext3_ordered_writepage+0x20a/0x230()
Modules linked in:
Pid: 2149, comm: flush-202:0 Not tainted 3.1.0-linode39 #1
Call Trace:
 [<c01346f8>] ? warn_slowpath_common+0x78/0xb0
 [<c025666a>] ? ext3_ordered_writepage+0x20a/0x230
 [<c025666a>] ? ext3_ordered_writepage+0x20a/0x230
 [<c013474b>] ? warn_slowpath_null+0x1b/0x20
 [<c025666a>] ? ext3_ordered_writepage+0x20a/0x230
 [<c01067e4>] ? check_events+0x8/0xc
 [<c018c3c8>] ? __writepage+0x8/0x30
 [<c018cbc6>] ? write_cache_pages+0x196/0x390
 [<c018c3c0>] ? set_page_dirty+0x60/0x60
 [<c018cdfe>] ? generic_writepages+0x3e/0x60
 [<c01d4ae5>] ? writeback_single_inode+0x115/0x2b0
 [<c0102b18>] ? xen_end_context_switch+0x8/0x10
 [<c01d52c1>] ? writeback_sb_inodes+0x171/0x210
 [<c01d58d5>] ? __writeback_inodes_wb+0x75/0xb0
 [<c01d5b31>] ? wb_writeback+0x1a1/0x1b0
 [<c0106007>] ? xen_force_evtchn_callback+0x17/0x30
 [<c01067e4>] ? check_events+0x8/0xc
 [<c01d5cef>] ? wb_do_writeback+0x1af/0x1c0
 [<c01d5d71>] ? bdi_writeback_thread+0x71/0x130
 [<c01d5d00>] ? wb_do_writeback+0x1c0/0x1c0
 [<c014e1a4>] ? kthread+0x74/0x80
 [<c014e130>] ? kthread_worker_fn+0x170/0x170
 [<c06c63b6>] ? kernel_thread_helper+0x6/0x10
---[ end trace 702f842be742d945 ]---


And a different user:
------------[ cut here ]------------
WARNING: at fs/ext3/inode.c:1695 ext3_writeback_writepage+0x12a/0x150()
Modules linked in:
Pid: 2146, comm: flush-202:0 Not tainted 3.1.0-linode39 #1
Call Trace:
 [<c01346f8>] ? warn_slowpath_common+0x78/0xb0
 [<c025643a>] ? ext3_writeback_writepage+0x12a/0x150
 [<c025643a>] ? ext3_writeback_writepage+0x12a/0x150
 [<c013474b>] ? warn_slowpath_null+0x1b/0x20
 [<c025643a>] ? ext3_writeback_writepage+0x12a/0x150
 [<c01067e4>] ? check_events+0x8/0xc
 [<c018c3c8>] ? __writepage+0x8/0x30
 [<c018cbc6>] ? write_cache_pages+0x196/0x390
 [<c018c3c0>] ? set_page_dirty+0x60/0x60
 [<c010dfd8>] ? sched_clock+0x8/0x10
 [<c0154452>] ? sched_clock_local+0xb2/0x190
 [<c018cdfe>] ? generic_writepages+0x3e/0x60
 [<c01d4ae5>] ? writeback_single_inode+0x115/0x2b0
 [<c0102b18>] ? xen_end_context_switch+0x8/0x10
 [<c01d52c1>] ? writeback_sb_inodes+0x171/0x210
 [<c01d58d5>] ? __writeback_inodes_wb+0x75/0xb0
 [<c01d5b31>] ? wb_writeback+0x1a1/0x1b0
 [<c0106007>] ? xen_force_evtchn_callback+0x17/0x30
 [<c01067e4>] ? check_events+0x8/0xc
 [<c01d5cef>] ? wb_do_writeback+0x1af/0x1c0
 [<c01d5d71>] ? bdi_writeback_thread+0x71/0x130
 [<c01d5d00>] ? wb_do_writeback+0x1c0/0x1c0
 [<c014e1a4>] ? kthread+0x74/0x80
 [<c014e130>] ? kthread_worker_fn+0x170/0x170
 [<c06c63b6>] ? kernel_thread_helper+0x6/0x10
---[ end trace 0a37bc36a180e73c ]---

Am I barking up the wrong list?

Thanks,
-Chris


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