As this happens frequently I've found out that the system recovers from the freeze and resumes normal operation two to ten minutes after. However the system continues to freeze periodically after that.
Steps to reproduce:
1. Do something that causes a lot of IO operations ie. copy images, mp3's around, download Ibex cd-images from the net etc.
2. Wait until system freezes and check out dmesg from terminal (if you it opens) and you'll see something like this:
As this happens frequently I've found out that the system recovers from the freeze and resumes normal operation two to ten minutes after. However the system continues to freeze periodically after that.
Steps to reproduce:
1. Do something that causes a lot of IO operations ie. copy images, mp3's around, download Ibex cd-images from the net etc.
2. Wait until system freezes and check out dmesg from terminal (if you it opens) and you'll see something like this:
[ 9309.344503] INFO: task pdflush:17487 blocked for more than 120 seconds. kernel/ hung_task_ timeout_ secs" disables this message. def>] ? __up_read+0x8f/0xb0 d65>] schedule_ timeout+ 0x95/0xd0 037>] ? xfs_bmap_ add_extent+ 0x237/0x420 [xfs] 7e6>] __down+0x76/0xc0 ddc>] down+0x4c/0x50 e23>] xfs_buf_ lock+0x23/ 0x60 [xfs] 9e2>] xfs_getsb+0x22/0x50 [xfs] 69a>] xfs_trans_ getsb+0x5a/ 0xa0 [xfs] d90>] xfs_trans_ apply_sb_ deltas+ 0x20/0x320 [xfs] 1ab>] _xfs_trans_ commit+ 0x11b/0x3f0 [xfs] 7de>] ? xlog_space_ left+0xe/ 0x90 [xfs] 5d1>] ? xfs_bmap_ finish+ 0x21/0x1a0 [xfs] 518>] xfs_iomap_ write_allocate+ 0x288/0x3e0 [xfs] 356>] xfs_iomap+ 0x2d6/0x310 [xfs] f66>] ? blk_rq_ map_sg+ 0x16/0x2d0 15b>] xfs_map_ blocks+ 0x3b/0x90 [xfs] 6c6>] ? swiotlb_ map_sg_ attrs+0x56/ 0x160 3eb>] xfs_page_ state_convert+ 0x2fb/0x760 [xfs] 38c>] ? ahci_qc_ issue+0xc/ 0xe0 [ahci] d30>] ? radix_tree_ gang_lookup_ tag_slot+ 0xc0/0xe0 a24>] ? elv_next_ request+ 0x164/0x290 9b1>] xfs_vm_ writepage+ 0x71/0x120 [xfs] eaa>] ? __dec_zone_ page_state+ 0x2a/0x30 407>] __writepage+ 0x17/0x50 68d>] write_cache_ pages+0x2bd/ 0x420 3f0>] ? __writepage+ 0x0/0x50 fab>] ? mempool_ alloc+0x5b/ 0x140 814>] generic_ writepages+ 0x24/0x30 50c>] xfs_vm_ writepages+ 0x5c/0x80 [xfs] 84d>] do_writepages+ 0x2d/0x50 a3b>] __sync_ single_ inode+0x6b/ 0x2f0 d18>] __writeback_ single_ inode+0x58/ 0x1b0 ae2>] ? update_ curr+0x62/ 0xd0 905>] ? rb_erase+0xe5/0x170 2d4>] generic_ sync_sb_ inodes+ 0x314/0x490 702>] writeback_ inodes+ 0x62/0x100 d18>] background_ writeout+ 0xb8/0xf0 07e>] __pdflush+ 0x13e/0x220 1bb>] pdflush+0x5b/0x70 c60>] ? background_ writeout+ 0x0/0xf0 160>] ? pdflush+0x0/0x70 c1e>] kthread+0x4e/0x90 c99>] child_rip+0xa/0x11 bd0>] ? kthread+0x0/0x90 c8f>] ? child_rip+0x0/0x11
[ 9309.344505] "echo 0 > /proc/sys/
[ 9309.344508] pdflush D 0000000000000001 0 17487 2
[ 9309.344513] ffff8800b2ce14e0 0000000000000046 00000000000256b3 ffffffff803a7def
[ 9309.344518] ffffffff807a5400 ffffffff807a5400 ffffffff807a5400 ffffffff807a5400
[ 9309.344524] ffffffff807a5400 ffffffff807a5400 ffffffff807a5400 ffffffff807a5400
[ 9309.344528] Call Trace:
[ 9309.344534] [<ffffffff803a7
[ 9309.344538] [<ffffffff80500
[ 9309.344560] [<ffffffffa0af9
[ 9309.344565] [<ffffffff80501
[ 9309.344569] [<ffffffff8026b
[ 9309.344590] [<ffffffffa0b3e
[ 9309.344612] [<ffffffffa0b2b
[ 9309.344634] [<ffffffffa0b32
[ 9309.344656] [<ffffffffa0b30
[ 9309.344678] [<ffffffffa0b31
[ 9309.344700] [<ffffffffa0b22
[ 9309.344721] [<ffffffffa0af6
[ 9309.344744] [<ffffffffa0b1f
[ 9309.344767] [<ffffffffa0b20
[ 9309.344773] [<ffffffff80395
[ 9309.344793] [<ffffffffa0b3b
[ 9309.344799] [<ffffffff803b3
[ 9309.344819] [<ffffffffa0b3c
[ 9309.344838] [<ffffffffa0103
[ 9309.344844] [<ffffffff803a6
[ 9309.344849] [<ffffffff8038f
[ 9309.344870] [<ffffffffa0b3c
[ 9309.344875] [<ffffffff802bb
[ 9309.344879] [<ffffffff802b4
[ 9309.344883] [<ffffffff802b5
[ 9309.344887] [<ffffffff802b4
[ 9309.344890] [<ffffffff802ae
[ 9309.344896] [<ffffffff802b5
[ 9309.344916] [<ffffffffa0b3b
[ 9309.344921] [<ffffffff802b5
[ 9309.344925] [<ffffffff8030e
[ 9309.344930] [<ffffffff8030e
[ 9309.344933] [<ffffffff8023b
[ 9309.344937] [<ffffffff803a7
[ 9309.344942] [<ffffffff8030f
[ 9309.344945] [<ffffffff8030f
[ 9309.344950] [<ffffffff802b4
[ 9309.344954] [<ffffffff802b6
[ 9309.344958] [<ffffffff802b6
[ 9309.344962] [<ffffffff802b4
[ 9309.344965] [<ffffffff802b6
[ 9309.344968] [<ffffffff80266
[ 9309.344972] [<ffffffff80213
[ 9309.344976] [<ffffffff80266
[ 9309.344978] [<ffffffff80213
[ 9309.344981]
dmesg show nothing more than things resume to normal.