[Devel] Re: [PATCH 1/2][cryo] Save/restore state of unnamed pipes

[Serge E. Hallyn]

Quoting sukadev at us.ibm.com (sukadev at us.ibm.com):
> Serge E. Hallyn [serue at us.ibm.com] wrote:
> | Quoting sukadev at us.ibm.com (sukadev at us.ibm.com):
> | > | +		} else
> | > | +			ERROR("Unexpected item, '%s'\n", item);
> | > | +	}
> | > | +	DEBUG("restore_fifo() fd %d, len %d, got 'END FIFO'\n",
> | > | +			fifofdinfo->fi_fd, fifofdinfo->fi_length);
> | > | +	return 0;
> | > | +}
> | > 
> | > fifofdinfo can be NULL if application does not have any fifos and
> | > the above DEBUG() will SIGSEGV. Following updated patch fixes this.
> | > Thanks Serge for reporting the bug.
> | 
> | Thanks, Suka.  This version works for both pipe and sleep testcases.
> | 
> | Though, interestingly, it segfaults on the -lxc kernel.  It succeeds on
> | a recent -git from Linus' tree, though.
> 
> I have been testing 2.6.25-mm1.
> 
> I run into the semun_undo underflow bug with -lxc. Is that the same
> bug you are running into ?

I'm not sure...  Not looking into it too deeply.  Hopefully Kathy is
coming out with a new -lxc in the next few days, and if it still causes
me problems then I'll really look into it.

-serge
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