[Nottingham] kernel 2.6.27: INFO: task xxxx blocked for more than 120 seconds.

Martin martin at ml1.co.uk
Mon Nov 10 11:37:49 UTC 2008


A real gem in the log from a 2.6.27 kernel:

kernel: INFO: task xxxx blocked for more than 120 seconds.
kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this

The blocked processes appear to be then released and the tasks continue.
Woo-hoo! In earlier kernels, the system would suffer with those parts
locked out until a reboot.

Now for the /really/ interesting question... Anyone able to decrypt what

I'm using "tar c | tar d" to compare 200 GBytes of data between a
firewire external HDD and a USB2 externel HDD, both using reiserfs.

I noticed that the drives had stopped transferring data for a few
minutes. Then they started up again.


Worth chasing to put in a bug report?


Martin Lomas
martin at ml1.co.uk
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