On Thu, 10 Jul 2003, George Talbot wrote: > Hi, > > We have a problem here with clients that make heavy use of mmap() on > files stored on an AFS server. The program doing the mmap() access will > hang, as will top, ps, etc. I'm using Linux kernel 2.4.20, with OpenAFS > 1.2.8, and OpenMosix, though I don't think it's OpenMosix, because if I > recompile the kernel without OpenMosix, I still get hangs, just not as > frequently. > > So I found this patch: > > https://lists.openafs.org/pipermail/openafs-devel/2002-December/003624.html
The patch we ended up applying to the head only, and not to any 1.2.x yet, was: http://www.openafs.org/cgi-bin/wdelta/linux-execsorwrites-at-close-20030328?diff&f=u > This patch does not work for us. I did some further investigation of > where the program is hanging. The programs hang in > afs_linux_vma_close() right when this function tries to acquire a write [] > At this point afs_linux_vma_close() gets called because the application > is unmapping the file, acquires the AFS_GLOCK(), and blocks trying to > acquire the shared lock. > > Then, I believe that afs_GetDCache() runs again after the read > completes, tries to acquire the AFS_GLOCK() and blocks. I will look at this soon unless someone beats me to it. _______________________________________________ OpenAFS-devel mailing list [EMAIL PROTECTED] https://lists.openafs.org/mailman/listinfo/openafs-devel
