In that blog post Benoît does a fair amount of showing off to end up with "So this segfault remains a mystery so far" :-)
My take is don't suspect the JVM, suspect your libc. I am not a fan of using Ubuntu on the server side. Perhaps you can try a distribution based on a different kernel+glibc? (RHEL comes to mind.) I realize that could be... inconvenient. On Thu, May 2, 2013 at 1:39 PM, Varun Sharma <[email protected]> wrote: > I don't have one unfortunately - We did not have the -XX:ErrorLog turned on > :( > > But I did some digging following what Benoit wrote in his Blog. Basically > the segfault happens in the same place inside a clearerr() function in > glibc which accepts a file descriptor. > > The JVM version is sun java 1.6.0u38. Is this possibly too old ? > > Thanks > Varun > > > On Thu, May 2, 2013 at 12:08 PM, Andrew Purtell <[email protected]> > wrote: > > > Can you pastebin or post somewhere the entire hs_err* file? > > > > > > On Wed, May 1, 2013 at 1:54 PM, Varun Sharma <[email protected]> > wrote: > > > > > Hi, > > > > > > I am seeing the following which is a JVM segfault: > > > > > > hbase-regionser[28734]: segfault at 8 ip 00007f269bcc307e sp > > > 00007fff50f7e638 error 4 in libc-2.15.so[7f269bc51000+1b5000] > > > > > > Benoit Tsuna reported a similar issue a while back - > > > > > > > > > http://blog.tsunanet.net/2011/05/jvm-u24-segfault-in-clearerr-on-jaunty.html > > > > > > I wonder if there was ever a resolution on the issue. We are running > java > > > version "1.6.0_38" > > > , ubuntu precise 12.04 - kernel 3.2. The libc version from the above > line > > > seems to be 2.15. > > > > > > I wonder if people have seen this in the past and if yes, were they > able > > to > > > resolve it and if yes, then how ? Was it a VM upgrade, a kernel upgrade > > or > > > a libc upgrade ? > > > > > > Thanks > > > Varun > > > > > > > > > > > -- > > Best regards, > > > > - Andy > > > > Problems worthy of attack prove their worth by hitting back. - Piet Hein > > (via Tom White) > > > -- Best regards, - Andy Problems worthy of attack prove their worth by hitting back. - Piet Hein (via Tom White)
