reproducer: #include <stdlib.h> #include <errno.h> #include <fcntl.h> #include <unistd.h> int main() { char buf[256]; int fd = open ("/proc/xen/xenbus", O_RDONLY | O_NONBLOCK); if (fd == -1) { perror ("/proc/xen/xenbus"); exit (1); } alarm (5); while (read (fd, buf, 256) == -1 && errno != EAGAIN) ; puts ("works"); exit (0); }
This request was evaluated by Red Hat Product Management for inclusion in a Red Hat Enterprise Linux maintenance release. Product Management has requested further review of this request by Red Hat Engineering, for potential inclusion in a Red Hat Enterprise Linux Update release for currently deployed products. This request is not yet committed for inclusion in an Update release.
Committed in 89.42.EL . RPMS are available at http://people.redhat.com/vgoyal/rhel4/
QA verified this bug with kernel-xenU-2.6.9-93.EL: Compile the reproducer in the guest and execute it. output is 'works'.
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on therefore solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHSA-2011-0263.html