Re: Process stuck in D+ on cephfs mount

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Yes sort of. I do have an inconsistent pg for a while, but it is on a 
different pool. But I take it this is related to a networking issue I 
currently have with rsync and broken pipe. 

Where exactly does it go wrong? The cephfs kernel clients is sending a 
request to the osd, but the osd never replies?

 >
 >
 >>
 >>
 >> I got one again
 >>
 >> [<ffffffff81183503>] wait_on_page_bit_killable+0x83/0xa0
 >> [<ffffffff811835d2>] __lock_page_or_retry+0xb2/0xc0
 >> [<ffffffff81183997>] filemap_fault+0x3b7/0x410
 >> [<ffffffffa055ce9c>] ceph_filemap_fault+0x13c/0x310 [ceph]
 >> [<ffffffff811ac84c>] __do_fault+0x4c/0xc0
 >> [<ffffffff811acce3>] do_read_fault.isra.42+0x43/0x130
 >> [<ffffffff811b1471>] handle_mm_fault+0x6b1/0x1040
 >> [<ffffffff81692c04>] __do_page_fault+0x154/0x450
 >> [<ffffffff81692f35>] do_page_fault+0x35/0x90
 >> [<ffffffff8168f148>] page_fault+0x28/0x30
 >> [<ffffffffffffffff>] 0xffffffffffffffff
 >>
 >>
 >
 >This is likely caused by hang osd request,  was you cluster health?
 >
 >
 >>  >check /proc/<stuck process>/stack to find where it is stuck
 >>  >
 >>  >>
 >>  >>
 >>  >> I have a process stuck in D+ writing to cephfs kernel mount.
 >> Anything
 >>  >> can be done about this? (without rebooting)
 >>  >>
 >>  >>
 >>  >> CentOS Linux release 7.5.1804 (Core)
 >>  >> Linux 3.10.0-514.21.2.el7.x86_64
 >>  >>
 >>
 >>
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