On 01/31/2017 01:15 AM, Philipp Kern wrote: [...] >> 149 0 0 RW [btrfs-transacti] > > So there's always a running btrfs-transaction. The kernel messages start > off like this: [...]
At it turns out, it also OOMs the complete machine after 2h while consuming the available 4 GB RAM (w/o swap): > [rootfs ]# [ 6347.417391] Out of memory: Kill process 228 (sh) score 0 or > sacrifice child > [ 6347.450652] Killed process 228 (sh) total-vm:6724kB, anon-rss:112kB, > file-rss:1624kB, shmem-rss:0kB > [ 6347.500015] Kernel panic - not syncing: Out of memory and no killable > processes... > [ 6347.500015] > [ 6347.544684] CPU: 0 PID: 149 Comm: btrfs-transacti Not tainted 4.9.6-1-ARCH > #1 > [ 6347.580157] Hardware name: HP ProLiant MicroServer Gen8, BIOS J06 > 07/16/2015 > [ 6347.614874] ffffc90000d77738 ffffffff81305440 ffffc90000d77800 > ffffffff81930520 > [ 6347.651089] ffffc90000d777c0 ffffffff8117eed5 0000000000000008 > ffffc90000d777d0 > [ 6347.687037] ffffc90000d77768 0000000009689dbd 0000000000000003 > ffff8801032adcc0 > [ 6347.723589] Call Trace: > [ 6347.735614] [<ffffffff81305440>] dump_stack+0x63/0x83 > [ 6347.760845] [<ffffffff8117eed5>] panic+0xe4/0x22d > [ 6347.784187] [<ffffffff81185e23>] out_of_memory+0x333/0x480 > [ 6347.811209] [<ffffffff8118b4c6>] __alloc_pages_nodemask+0xda6/0xe80 > [ 6347.842223] [<ffffffff811df1e5>] alloc_pages_current+0x95/0x140 > [ 6347.871859] [<ffffffff81181634>] __page_cache_alloc+0xc4/0xe0 > [ 6347.900582] [<ffffffff81181737>] pagecache_get_page+0xe7/0x290 > [ 6347.929238] [<ffffffffa01fa4a3>] alloc_extent_buffer+0x113/0x480 [btrfs] > [ 6347.962291] [<ffffffffa01cb670>] read_tree_block+0x20/0x60 [btrfs] > [ 6347.992642] [<ffffffffa01a9488>] > read_block_for_search.isra.16+0x138/0x300 [btrfs] > [ 6348.030866] [<ffffffffa01ab72e>] btrfs_search_slot+0x3be/0x9b0 [btrfs] > [ 6348.063286] [<ffffffffa023e816>] find_parent_nodes+0x116/0x14b0 [btrfs] > [ 6348.096113] [<ffffffffa023fc6e>] __btrfs_find_all_roots+0xbe/0x130 [btrfs] > [ 6348.131093] [<ffffffffa023fd55>] btrfs_find_all_roots+0x55/0x70 [btrfs] > [ 6348.164002] [<ffffffffa0243a78>] > btrfs_qgroup_prepare_account_extents+0x58/0xa0 [btrfs] > [ 6348.203555] [<ffffffffa01d4344>] > btrfs_commit_transaction.part.12+0x3e4/0xa90 [btrfs] > [ 6348.241927] [<ffffffff810c4200>] ? wake_atomic_t_function+0x60/0x60 > [ 6348.273073] [<ffffffffa01d4a2b>] btrfs_commit_transaction+0x3b/0x70 > [btrfs] > [ 6348.307196] [<ffffffffa01cedcb>] transaction_kthread+0x1ab/0x1e0 [btrfs] > [ 6348.340041] [<ffffffffa01cec20>] ? btrfs_cleanup_transaction+0x570/0x570 > [btrfs] > [ 6348.376634] [<ffffffff8109e8f9>] kthread+0xd9/0xf0 > [ 6348.400423] [<ffffffff8102d752>] ? __switch_to+0x2d2/0x630 > [ 6348.428162] [<ffffffff8109e820>] ? kthread_park+0x60/0x60 > [ 6348.455055] [<ffffffff8160a995>] ret_from_fork+0x25/0x30 > [ 6348.481684] Kernel Offset: disabled > [ 6348.505391] ---[ end Kernel panic - not syncing: Out of memory and no > killable processes... > [ 6348.505391] > Killed Kind regards Philipp Kern
signature.asc
Description: OpenPGP digital signature
