Messages in this thread | | | From | "Chandrasekhar" <> | Subject | Stack Trace dump in do_IRQ | Date | Tue, 29 Apr 2003 18:04:28 +0530 |
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Hi All, We have a custom driver which runs on Red Hat Advanced Server 2.1(kernel version 2.4.9-e.3). On loading the driver (using insmod) and running our configuration program, we got folowing warning message "do_IRQ: stack overflow: 1786" and along with the stack trace.
The configuration program, however, ran successfully.
On going through the do_IRQ code in arch/i386/kernel/irq.c we found that is is used for debugging check for stack overflow i.e if the stack size is less than 2KB free. There is no similar debugging check in other kernels like 2.4.7-10,2.4.18-3 and 2.4.18-14. What is the significance of this debugging information and why other kernels dont have the same check? Also, if the stack overflow can cause future problems, then how can we increase the stack size? Thanks in advance for any information on this.
Thanks and Regards Chandrasekhar
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