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mailarch
2014 May 30
1
attachment sis + EMLINK (too many links) = segfault bug (2.2.12)
...filesystem over nfs.
Problem is that netapp has hard limit of 100k hardlinks to one file.
And we encountered it.
Problem is that dovecot start do segfault (lmtp,dsync,pop3 etc) when it
happend when tried to deliver new emails with that attachment.
Here is strace of dsync:
6740
link("/nfsmnt/mailatch1/f9/10/hashes/f9108ddaa156ac15738e41ed3bedec1eda50175d",
"/nfsmnt/mailatch1/f9/10/f9108ddaa156ac15738e41ed3bedec1eda50175d-7bb7a20ddb598853541a000028db4a9f")
= -1 EMLINK (Too many links) 6740 --- SIGSEGV (Segmentation fault) @ 0
(0) ---
ls -lh:
-rw------- 100000 vmail vmail 4.7K Apr...