Messages in this thread | | | Date | Tue, 19 Aug 2003 12:46:44 -0700 (PDT) | From | Rock Gordon <> | Subject | init consumes 99% cpu, syslog Z |
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Hi,
I am using linux-2.4.18 (vanilla, from ftp.kernel.org) on a RedHat 7.3 release. The filesystem is XFS. When doing heavy I/O (16 processes each writing or reading between 2 and 5 GB of data to a 2TB XFS filesystem), I see wierd unsolvable problems -
Firstly, init all of a sudden starts consuming upwards of 99% cpu (the profiler shows that it spends most of it's time in the functions send_sig_info()/force_sig_info()). Pretty soon (10-15 seconds or so), syslogd becomes a zombie, with init still spinning in R mode.
Absolutely nothing in /var/log/messages; and dmesg shows nothing either. No visible barfing. And this goes on and on.
Any process I run after this keeps getting segfaults, and also ends up becoming a zombie. This problem repeats exactly on other identical machines.
The system is a dual-CPU 2.4Ghz Dell 2650 machine and the problems show up without hyperthreading too. The problem shows up without XFS too.
Any ideas/suggestions?
Thanks and Regards, Rocky
PS: I am not on the list.
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