Why can't we sleep in an ISR?

I have a very basic doubt here ... what makes it impossible to sleep
in an ISR? I mean, I know that the kernel preemption is disabled and
the kernel will panic, but I could not understand why?

TIA,

LL
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Follow-Ups:
- Re: Why can't we sleep in an ISR?
  - From: Helge Hafting <[email protected]>

Prev by Date: Re: [patch 0/4] powerpc 2.6.21-rt1: reduce scheduling latency by changing tlb flush size
Next by Date: Re: [patch 4/4] powerpc 2.6.21-rt1: reduce scheduling latency by changing tlb flush size
Previous by thread: [patch 0/4] powerpc 2.6.21-rt1: fix build a breakage and some minor issues
Next by thread: Re: Why can't we sleep in an ISR?
Index(es):
- Date
- Thread

[Index of Archives] [Kernel Newbies] [Netfilter] [Bugtraq] [Photo] [Stuff] [Gimp] [Yosemite News] [MIPS Linux] [ARM Linux] [Linux Security] [Linux RAID] [Video 4 Linux] [Linux for the blind] [Linux Resources]