CODEWITHSUNDEEP
linuxkernel
user73636
user73636

Reputation: 79

Issue in SoftLockup on Linux Kernel 2.6.32 (RHEL 6.4)

I am in need of help regarding softlockup in Linux Kernel.

I have developed a kernel driver for a Hardware, where I have to wait or loop (the time delay provided from the user application) for a specified amount of time (say example the delay time is 1 or 20 or ... minutes) to perform some tasks. I am getting softlockup message from the kernel whenever I am setting the delay time more than 1 minutes.

Is there a way to avoid the lockup messages from the kernel. I have used kernel sleep calls such as msleep, ssleep, etc also I have implemented a logic to wait for the specified time.

Any advice would be of great help. Thanks in advance.

Regards, Srinivasa Raghavan.

Upvotes: 2

Views: 110

Answers (1)

Armali
Armali

Reputation: 19395

See delays - Information on the various kernel delay / sleep mechanisms. For your case:

    SLEEPING FOR LARGER MSECS ( 10ms+ )
        * Use msleep or possibly msleep_interruptible

If you are getting softlockup message from the kernel whenever … setting the delay time more than 1 minutes still, you could try to repeatedly wait for 1 minute.

Upvotes: 1

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