Commit9d695fc

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In isolationtester, retry after EINTR return from select(2).

Per report from Jaime Casanova. Very curious that no one else has seenthis failure ... but the code is clearly wrong as-is.

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Original file line number	Diff line number	Diff line change
`@@ -709,6 +709,8 @@ try_complete_step(Step * step, int flags)`
`709`	`709`	`ret=select(sock+1,&read_set,NULL,NULL,&timeout);`
`710`	`710`	`if (ret<0)/* error in select() */`
`711`	`711`	`{`
	`712`	`+if (errno==EINTR)`
	`713`	`+continue;`
`712`	`714`	`fprintf(stderr,"select failed: %s\n",strerror(errno));`
`713`	`715`	`exit_nicely();`
`714`	`716`	`}`

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