Re: mount /dev/rbd0 /mnt/image2 + rm Python-2.7.13 -rf => freeze

[Stéphane Klein <contact@xxxxxxxxxxxxxxxxxxx>]

2016-12-21 23:06 GMT+01:00 Ilya Dryomov <idryomov@xxxxxxxxx>:

What's the output of "cat /proc/$(pidof rm)/stack?

root@ceph-client-3:/home/vagrant# cat /proc/2315/stack
[<ffffffff8115313e>] sleep_on_page+0xe/0x20
[<ffffffff81152eff>] wait_on_page_bit+0x7f/0x90
[<ffffffff81162b6e>] truncate_inode_pages_range+0x2fe/0x5a0
[<ffffffff81162e25>] truncate_inode_pages+0x15/0x20
[<ffffffff8124b27e>] ext4_evict_inode+0x12e/0x510
[<ffffffff811ddb50>] evict+0xb0/0x1b0
[<ffffffff811de365>] iput+0xf5/0x180
[<ffffffff811d2cde>] do_unlinkat+0x18e/0x2b0
[<ffffffff811d3c0b>] SyS_unlinkat+0x1b/0x40
[<ffffffff8173d9dd>] system_call_fastpath+0x1a/0x1f
[<ffffffffffffffff>] 0xffffffffffffffff
 

Can you do "echo w >/proc/sysrq-trigger", "echo t >/proc/sysrq-trigger"
on the ceph-client VM and attach dmesg output?

https://gist.github.com/harobed/37e23ced839f17d91a0e43435348205a

Thanks :)

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