On Thu, Mar 05, 2015 at 05:56:26PM +0300, Dmitry V. Levin wrote: > On Wed, Mar 04, 2015 at 10:55:45PM -0500, Mike Frysinger wrote: > > vFAIL: test; s390x 64-bit/MSB linux-3.19.0 > > kernel-headers-3.16.0 glibc-2.19 gcc-4.8.3 > > It's unix-yy.test again with the same issue that looks like a race > condition: from time to time, print_sockaddr_by_inode fails to fetch > netlink information. I've run series of unix-yy.test on a x86_64 system > and got about 0.4% chance of failure. On these s390/s390x hosts, though, > unix-yy.test fails with probability over 50%.
Yes, it was a genuine kernel race: NETLINK_SOCK_DIAG interface might send a zero UNIX_DIAG_PEER message for a freshly connected socket if the accept syscall hasn't been completed at this point. Fixed with commit da66e25779635e59b42a4477ef1e8b6b6917dac6. -- ldv
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