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Feb
23
comment What are processes “[123.45.78.901-ma]” on linux, where the number is an NFS server's IP address?
Thanks for the details. My clients are on Ubuntu linux-image-4.2.0-27-generic, and sporadically, suddenly some NFS mount gets stuck with those [123.456.78.90-m] threads in uninterruptible disk sleep. Might happen after 10 minutes or only after a few days. Often, then also some mount.nfs process is in disk sleep, which was initiated by the automounter. Everything used to work fine till maybe ~1 month ago. I'm quite cueless how to further debug this. My hope now is that the recent update to linux-image-4.2.0-30-generic will solve it.
Feb
23
comment What are processes “[123.45.78.901-ma]” on linux, where the number is an NFS server's IP address?
I have similar problems right now. Only the letter "a" is missing, so the pattern is [123.456.78.90-m]. Do you remember the kernel version which caused the trouble for you? How did you find out that it is a kernel bug? Thanks!
Feb
9
awarded  Scholar
Feb
9
accepted NFS server mount options vs. client mount options
Feb
9
asked NFS server mount options vs. client mount options
Mar
23
awarded  Supporter