On Mon, 2018-12-17 at 11:28 -0700, Jens Axboe wrote:
> As I'm sure you're all aware, the merge window is coming up. This time
> it happens to coincide with that is a holiday for most. My plan is to
> send in an EARLY pull request to Linus, Thursday at the latest. If you're
> sitting on anything that should go in with the initial merge, then I need
> to have it ASAP.
>
> I'll do a later pull about a week in with things that were missed, but
> I'm really hoping to make that fixes only. Any driver updates etc should
> go in now.
Hi Jens,
If I run blktests/srp/002 against Linus' master branch then that test passes,
no matter how many times I run that test. If I run that test against your
for-next branch however (commit 6a252f2772c0) then that test hangs. The output
of my list-pending-block-requests script is as follows when the hang occurs:
dm-0
dm-1
dm-1/hctx0/active:0
dm-1/hctx0/flags:alloc_policy=FIFO SHOULD_MERGE|SG_MERGE
dm-1/hctx0/tags:nr_tags=2048
dm-1/hctx0/tags:nr_reserved_tags=0
dm-1/hctx0/tags:active_queues=0
dm-1/hctx0/tags:bitmap_tags:
dm-1/hctx0/tags:depth=2048
dm-1/hctx0/tags:busy=798
dm-1/hctx0/tags:cleared=935
dm-1/hctx0/tags:bits_per_word=64
dm-1/hctx0/tags:map_nr=32
dm-1/hctx0/tags:alloc_hint={682, 463, 595, 1923, 841, 628}
dm-1/hctx0/tags:wake_batch=8
dm-1/hctx0/tags:wake_index=0
dm-1/hctx0/tags:ws_active=0
dm-1/hctx0/tags:ws={
dm-1/hctx0/tags: {.wait_cnt=8, .wait=inactive},
dm-1/hctx0/tags: {.wait_cnt=8, .wait=inactive},
dm-1/hctx0/tags: {.wait_cnt=8, .wait=inactive},
dm-1/hctx0/tags: {.wait_cnt=8, .wait=inactive},
dm-1/hctx0/tags: {.wait_cnt=8, .wait=inactive},
dm-1/hctx0/tags: {.wait_cnt=8, .wait=inactive},
dm-1/hctx0/tags: {.wait_cnt=8, .wait=inactive},
dm-1/hctx0/tags: {.wait_cnt=8, .wait=inactive},
dm-1/hctx0/tags:}
dm-1/hctx0/tags:round_robin=0
dm-1/hctx0/tags:min_shallow_depth=4294967295
dm-1/hctx0/tags_bitmap:00000000: ff03 feff ffff ffff ffff ffff ffff ffff
dm-1/hctx0/tags_bitmap:00000010: ffff ffff ffff ffff ffff 1f70 0040 0100
dm-1/hctx0/tags_bitmap:00000020: ffff ffef f7bf ffe7 ffff ffff ffff ffdf
dm-1/hctx0/tags_bitmap:00000030: ffff ffff ffff ffff ffff ffff ffff ffff
dm-1/hctx0/tags_bitmap:00000040: ffff ffff ffff ff7f ffff ffff ffff ffff
dm-1/hctx0/tags_bitmap:00000050: ffff ffff ffff ffff ffff ffff ffff ffff
dm-1/hctx0/tags_bitmap:00000060: f3ff 1fe0 ffff f19f ffff ffff ffff ffff
dm-1/hctx0/tags_bitmap:00000070: ffff fff7 9bff fff7 0fec 1300 00e0 1f01
dm-1/hctx0/tags_bitmap:00000080: ffff ffff ffff e189 ff0f 90ff ffff ffff
dm-1/hctx0/tags_bitmap:00000090: ffff ffff ffff ffff ffff 0300 00fd 0780
dm-1/hctx0/tags_bitmap:000000a0: ffff ffff ffff ffff ff0f 0000 0000 5400
dm-1/hctx0/tags_bitmap:000000b0: ffff ffff ffff ffff ffff ffff ffff ff0f
dm-1/hctx0/tags_bitmap:000000c0: ffff ffff ffff ff3f ffff ffff ffff 7f1c
dm-1/hctx0/tags_bitmap:000000d0: ffff ffff ffff ffff ffff ffff ffff ffff
dm-1/hctx0/tags_bitmap:000000e0: ffff ffff 0f00 0040 1de0 1400 3cdf 0300
dm-1/hctx0/tags_bitmap:000000f0: ffff ffff 1f1c 7cfb ffff ffff ffff 1fef
dm-1/state:SAME_COMP|NONROT|IO_STAT|INIT_DONE|STATS|REGISTERED|QUIESCED
dm-1/queue/scheduler:[none] bfq kyber mq-deadline
dm-2
loop0
loop1
loop2
loop3
loop4
loop5
loop6
loop7
nullb0
nullb1
sda
sdb
sdc
sdd
sde
sdf
sdg
sdh
vda
Bart.
