Re: [PATCH for 4.7-rc] btrfs: Only check first key for committed tree blocks

2018-04-13 Thread David Sterba
On Fri, Apr 13, 2018 at 06:32:47AM +0800, Qu Wenruo wrote: > When looping btrfs/074 with many cpus (>= 8), it's possible to trigger > kernel warning due to first key verification: > > [ 4239.523446] WARNING: CPU: 5 PID: 2381 at fs/btrfs/disk-io.c:460 > btree_read_extent_buffer_pages+0x1ad/0x210 >

[PATCH for 4.7-rc] btrfs: Only check first key for committed tree blocks

2018-04-12 Thread Qu Wenruo
When looping btrfs/074 with many cpus (>= 8), it's possible to trigger kernel warning due to first key verification: [ 4239.523446] WARNING: CPU: 5 PID: 2381 at fs/btrfs/disk-io.c:460 btree_read_extent_buffer_pages+0x1ad/0x210 [ 4239.523830] Modules linked in: [ 4239.524630] RIP: 0010:btree_read_