[FUG-BR] OT: Squid parando com signal 6

[Enio Marconcini # www.Enio.Pro.Br]

pessoal, de uns tempos pra cá percebi que um servidor com squid-3.0.19 em
FreeBSD 7.2 tem parado sozinho,

no log cache.log aparece mais ou menos assim:

2011/01/10 12:51:56| Version 1 of swap file without LFS support detected...
2011/01/10 12:51:56| Rebuilding storage in /squid/cache1 (DIRTY)
2011/01/10 12:51:56| Version 1 of swap file without LFS support detected...
2011/01/10 12:51:56| Rebuilding storage in /squid/cache2 (DIRTY)
2011/01/10 12:51:56| Version 1 of swap file without LFS support detected...
2011/01/10 12:51:56| Rebuilding storage in /squid/cache3 (DIRTY)
2011/01/10 12:51:56| Using Least Load store dir selection
(...)
2011/01/10 12:51:56| storeDiskdSend: msgsnd: (35) Resource temporarily
unavailable
2011/01/10 12:51:56| storeDiskdSend CREATE: (35) Resource temporarily
unavailable
2011/01/10 12:51:56| storeDiskdSend: msgsnd: (35) Resource temporarily
unavailable
2011/01/10 12:51:56| storeDiskdSend CLOSE: (35) Resource temporarily
unavailable
2011/01/10 12:51:56| assertion failed: ufs/store_io_ufs.cc:129: "!(closing
||opening)"


já no messages aparece assim:

Jan 10 12:51:40 amnesiac kernel: pid 1908 (squid), uid 100: exited on signal
6 (core dumped)
Jan 10 12:51:40 amnesiac squid[1443]: Squid Parent: child process 1908
exited due to signal 6
Jan 10 12:51:43 amnesiac squid[1443]: Squid Parent: child process 1924
started
Jan 10 12:51:52 amnesiac kernel: pid 1924 (squid), uid 100: exited on signal
6 (core dumped)
Jan 10 12:51:52 amnesiac squid[1443]: Squid Parent: child process 1924
exited due to signal 6
Jan 10 12:51:55 amnesiac squid[1443]: Squid Parent: child process 1940
started
Jan 10 12:51:57 amnesiac kernel: pid 1940 (squid), uid 100: exited on signal
6 (core dumped)
Jan 10 12:51:57 amnesiac squid[1443]: Squid Parent: child process 1940
exited due to signal 6
Jan 10 12:51:57 amnesiac squid[1443]: Exiting due to repeated, frequent
failures


conforme isso vai acontecendo, o squid para e volta, até chegar num ponto
que o processo encerra definitivamente o os usuários ficam sem internet.

alguém sabe o que pode ser isso?

abraços