Public bug reported:
We use lrzip to compress large logs with an hourly cronjob. The server
is sometimes short of memory. Occasionally lrzip freezes. Usually it
just hangs doing nothing, "strace -p $PID" just showing "WAIT(...".
Every now and then it's consuming 100% CPU doing this ad infinitum:
---<SNIP>---
mmap(NULL, 776081408, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
-1 ENOMEM (Cannot allocate memory)
mmap(NULL, 775950336, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
-1 ENOMEM (Cannot allocate memory)
mmap(NULL, 775950336, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
-1 ENOMEM (Cannot allocate memory)
brk(0x2fb42000) = 0x1742000
---<SNIP>---
Instead, lrzip should exit with a non-zero exit code so the situation
can be dealt with properly.
He would prefer to use lrzip to archive our data, but because of this
bug we had to revert back to gzip/bzip2 :-(
This is lrzip 0.608-1 on Ubuntu 12.04.5 (precise)
** Affects: lrzip (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1528857
Title:
lrzip freezes on low memory
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