Hi everyone, I'm running currently a patched linux 3.8.0 kernel (SCST iscsi target patches and STEC enhanceIO driver support) I created a btrfs raid10 filesystem with "mkfs.btrfs -m raid10 -d raid10 /dev/sdf /dev/sdg /dev/sdh /dev/sdi" On this volume I added a sparse file and shared it over iscsi with SCST, on the other side I ran an IOmeter test for a couple of hours. This happened already twice on a new volume, so I guess we can reproduce it. I've seen similar messages on the mailinglist for kernel 3.7.X and also we get some CPU stuck messages. 2013-03-02T00:27:33.830960+01: 00 linux-testsan kernel: [29480.367902] WARNING: at fs/btrfs/extent_map.c:78 free_extent_map+0x6e/0x90 [btrfs]() 2013-03-02T00:27:33.830963+01:00 linux-testsan kernel: [29480.367910] Hardware name: Veriton M67WS 2013-03-02T00:27:33.830965+01:00 linux-testsan kernel: [29480.367911] Modules linked in: iscsi_scst(O) scst_vdisk(O) scst(O) enhanceio_lru enhanceio_fifo enhanceio af_packet cpufreq_conservative cpufreq_use$ 2013-03-02T00:27:33.830967+01:00 linux-testsan kernel: [29480.367969] Pid: 12713, comm: disk010_7 Tainted: G W O 3.8.0-server-SCST-enhanceIO-1 #1 2013-03-02T00:27:33.830969+01:00 linux-testsan kernel: [29480.367971] Call Trace: 2013-03-02T00:27:33.830970+01:00 linux-testsan kernel: [29480.367981] [<ffffffff81004658>] dump_trace+0x78/0x2c0 2013-03-02T00:27:33.830972+01:00 linux-testsan kernel: [29480.367985] [<ffffffff8155d276>] dump_stack+0x69/0x6f 2013-03-02T00:27:33.830974+01:00 linux-testsan kernel: [29480.367990] [<ffffffff81043d29>] warn_slowpath_common+0x79/0xc0 2013-03-02T00:27:33.830975+01:00 linux-testsan kernel: [29480.368002] [<ffffffffa041e96e>] free_extent_map+0x6e/0x90 [btrfs] 2013-03-02T00:27:33.830981+01:00 linux-testsan kernel: [29480.368083] [<ffffffffa041bf3b>] btrfs_drop_extent_cache+0x35b/0x430 [btrfs] 2013-03-02T00:27:33.834940+01:00 linux-testsan kernel: [29480.368126] [<ffffffffa04117c6>] __cow_file_range+0xe6/0x4b0 [btrfs] 2013-03-02T00:27:33.834948+01:00 linux-testsan kernel: [29480.368166] [<ffffffffa0412755>] cow_file_range+0x95/0xf0 [btrfs] 2013-03-02T00:27:33.834949+01:00 linux-testsan kernel: [29480.368206] [<ffffffffa0412b15>] run_delalloc_range+0x365/0x3a0 [btrfs] 2013-03-02T00:27:33.834951+01:00 linux-testsan kernel: [29480.368248] [<ffffffffa0426829>] __extent_writepage+0x319/0x7b0 [btrfs] 2013-03-02T00:27:33.834952+01:00 linux-testsan kernel: [29480.368299] [<ffffffffa0426f48>] extent_write_cache_pages.isra.29.constprop.46+0x288/0x370 [btrfs] 2013-03-02T00:27:33.834954+01:00 linux-testsan kernel: [29480.368351] [<ffffffffa042727c>] extent_writepages+0x4c/0x60 [btrfs] 2013-03-02T00:27:33.834955+01:00 linux-testsan kernel: [29480.368395] [<ffffffff8110cb29>] __filemap_fdatawrite_range+0x49/0x50 2013-03-02T00:27:33.834971+01:00 linux-testsan kernel: [29480.368399] [<ffffffff8110cb80>] filemap_write_and_wait_range+0x50/0x70 2013-03-02T00:27:33.834972+01:00 linux-testsan kernel: [29480.368410] [<ffffffffa041a02b>] btrfs_sync_file+0x5b/0x240 [btrfs] 2013-03-02T00:27:33.834974+01:00 linux-testsan kernel: [29480.368453] [<ffffffffa041ba15>] btrfs_file_aio_write+0x405/0x5d0 [btrfs] 2013-03-02T00:27:33.834975+01:00 linux-testsan kernel: [29480.368489] [<ffffffff8116cfb8>] do_sync_readv_writev+0x88/0xc0 2013-03-02T00:27:33.834976+01:00 linux-testsan kernel: [29480.368492] [<ffffffff8116d29f>] do_readv_writev+0xcf/0x1f0 2013-03-02T00:27:33.834977+01:00 linux-testsan kernel: [29480.368497] [<ffffffffa05b9a34>] fileio_exec_write+0x284/0x4e0 [scst_vdisk] 2013-03-02T00:27:33.834978+01:00 linux-testsan kernel: [29480.368507] [<ffffffffa05b43a8>] vdev_do_job+0x18/0xa0 [scst_vdisk] 2013-03-02T00:27:33.834979+01:00 linux-testsan kernel: [29480.368517] [<ffffffffa0546a95>] scst_do_real_exec+0x55/0x1b0 [scst] 2013-03-02T00:27:33.834980+01:00 linux-testsan kernel: [29480.368525] [<ffffffffa0548de0>] scst_exec_check_blocking+0xa0/0x100 [scst] 2013-03-02T00:27:33.834982+01:00 linux-testsan kernel: [29480.368535] [<ffffffffa054957a>] scst_process_active_cmd+0xea/0x1720 [scst] 2013-03-02T00:27:33.834983+01:00 linux-testsan kernel: [29480.368544] [<ffffffffa054ac04>] scst_do_job_active+0x54/0x70 [scst] 2013-03-02T00:27:33.834984+01:00 linux-testsan kernel: [29480.368554] [<ffffffffa054ad6d>] scst_cmd_thread+0xfd/0x340 [scst] 2013-03-02T00:27:33.834985+01:00 linux-testsan kernel: [29480.368562] [<ffffffff81066183>] kthread+0xb3/0xc0 2013-03-02T00:27:33.834986+01:00 linux-testsan kernel: [29480.368566] [<ffffffff8157047c>] ret_from_fork+0x7c/0xb0 2013-03-02T00:27:33.834987+01:00 linux-testsan kernel: [29480.368569] ---[ end trace 32d79d600d4b3f34 ]--- -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
