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My device driver has an interrupt handler which handles interrupts at a very high priority. Sometimes the interrupt handler OOPS in __free_pages_OK. Any idea why it happens. (The process that was executing at that time is Python). System is Redhat 8.0, kernel 2.4.18-4 OOPS happens as follows. The interrupt handler pushes "gs" segment register, while entering and pops "gs" while leaving. Always, it OOPS at "pop %gs". The value that is popped to "gs" is 0007. The "lar" instruction (load access rights, with parameter 0007) gives a value 0x0010ec00, which shows it is a system segment. The code given by the General Protection Fault is 0004. Thanks Santhosh __________________________________________________ Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now. http://mailplus.yahoo.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | |||||||||
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