Messages in this thread | | | Date | Wed, 28 Jul 2010 15:36:43 -0600 | From | David Ahern <> | Subject | warning at __set_page_dirty in backport of perf counters from 2.6.31.14 to 2.6.27.48 |
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I would like to get the perf tool working with the 2.6.27 kernel series. To that end I have been working on backporting the code from 2.6.31.14.
I am hitting a WARN_ON_ONCE in __set_page_dirty that has me stumped. The backtrace is:
[ 1774.073892] ------------[ cut here ]------------ [ 1774.073895] WARNING: at fs/buffer.c:711 __set_page_dirty+0x72/0x126() [ 1774.073898] Modules linked in: nfs lockd nfs_acl sunrpc dm_multipath uinput i2c_piix4 i2c_core pcspkr virtio_net floppy virtio_blk virtio_pci virtio_ring virtio ext3 jbd mbcache [last unloaded: microcode] [ 1774.073916] Pid: 1911, comm: perf Not tainted 2.6.27.48 #22 [ 1774.073919] [<c065bcf8>] ? printk+0x14/0x1c [ 1774.073965] [<c042d9a7>] warn_on_slowpath+0x46/0x6a [ 1774.073991] [<c04771d9>] ? zone_watermark_ok+0xe/0xa4 [ 1774.074017] [<c04770d5>] ? constant_test_bit+0x9/0x20 [ 1774.074022] [<c0478d02>] ? get_page_from_freelist+0x348/0x453 [ 1774.074027] [<c04154ab>] ? __cpus_empty+0xd/0x44 [ 1774.074039] [<c04b62e1>] ? constant_test_bit+0x9/0x20 [ 1774.074043] [<c04b757e>] __set_page_dirty+0x72/0x126 [ 1774.074048] [<c04b7a36>] __set_page_dirty_buffers+0x62/0x66 [ 1774.074051] [<c04798c5>] set_page_dirty+0x2a/0xbc [ 1774.074054] [<c0481451>] do_wp_page+0x5c2/0x629 [ 1774.074058] [<c0474f56>] ? generic_file_buffered_write+0x17d/0x50d [ 1774.074064] [<c0482d42>] handle_mm_fault+0x8d5/0x980 [ 1774.074068] [<c047360d>] ? generic_write_checks+0xe/0x1f5 [ 1774.074073] [<c0444abd>] ? getnstimeofday+0x54/0xdc [ 1774.074085] [<c065f9ba>] do_page_fault+0x346/0x75a [ 1774.074089] [<f887d595>] ? constant_test_bit+0x9/0x20 [nfs] [ 1774.074114] [<f887e1bd>] ? nfs_file_write+0x11d/0x14c [nfs] [ 1774.074134] [<c04998ce>] ? do_sync_write+0xb0/0xee [ 1774.074154] [<c043f023>] ? autoremove_wake_function+0x0/0x38 [ 1774.074167] [<c04bfa7d>] ? inotify_inode_queue_event+0xe/0xb6 [ 1774.074204] [<c04bffb7>] ? inotify_dentry_parent_queue_event+0xe/0x83 [ 1774.074204] [<c049962d>] ? fsnotify_modify+0x54/0x5f [ 1774.074204] [<c049981e>] ? do_sync_write+0x0/0xee [ 1774.074204] [<c049a10d>] ? vfs_write+0xa9/0xe4 [ 1774.074204] [<c049a1eb>] ? sys_write+0x40/0x65 [ 1774.074204] [<c065f674>] ? do_page_fault+0x0/0x75a [ 1774.074204] [<c065deda>] error_code+0x72/0x78 [ 1774.074204] ======================= [ 1774.074204] ---[ end trace 555130f3852ca6a3 ]---
I am not subscribed to this list, so please cc me to any response.
Thanks,
David
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