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ffc79664d1
In some cases I'm on my ceph client cluster I'm seeing hunk kernel tasks in the invalidate page code path. This is due to the fact that we don't check if the page is marked as cache before calling fscache_wait_on_page_write(). This is the log from the hang INFO: task XXXXXX:12034 blocked for more than 120 seconds. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. ... Call Trace: [<ffffffff81568d09>] schedule+0x29/0x70 [<ffffffffa01d4cbd>] __fscache_wait_on_page_write+0x6d/0xb0 [fscache] [<ffffffff81083520>] ? add_wait_queue+0x60/0x60 [<ffffffffa029a3e9>] ceph_invalidate_fscache_page+0x29/0x50 [ceph] [<ffffffffa027df00>] ceph_invalidatepage+0x70/0x190 [ceph] [<ffffffff8112656f>] ? delete_from_page_cache+0x5f/0x70 [<ffffffff81133cab>] truncate_inode_page+0x8b/0x90 [<ffffffff81133ded>] truncate_inode_pages_range.part.12+0x13d/0x620 [<ffffffff8113431d>] truncate_inode_pages_range+0x4d/0x60 [<ffffffff811343b5>] truncate_inode_pages+0x15/0x20 [<ffffffff8119bbf6>] evict+0x1a6/0x1b0 [<ffffffff8119c3f3>] iput+0x103/0x190 ... Signed-off-by: Milosz Tanski <milosz@adfin.com> Reviewed-by: Sage Weil <sage@inktank.com> |
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| .. | ||
| addr.c | ||
| cache.c | ||
| cache.h | ||
| caps.c | ||
| ceph_frag.c | ||
| debugfs.c | ||
| dir.c | ||
| export.c | ||
| file.c | ||
| inode.c | ||
| ioctl.c | ||
| ioctl.h | ||
| Kconfig | ||
| locks.c | ||
| Makefile | ||
| mds_client.c | ||
| mds_client.h | ||
| mdsmap.c | ||
| snap.c | ||
| strings.c | ||
| super.c | ||
| super.h | ||
| xattr.c | ||