From: Paul H. Hargrove (PHHargrove_at_lbl_dot_gov)
Date: Wed Aug 26 2009 - 12:32:16 PDT
Josh, The error you see building 0.8.1 is because it does not support a 2.6.29.6 kernel (supported 2.6.29, but the put_fs_struct change took place somewhere in the 2.6.26.X series). I have tried 0.8.1 and 0.8.2 on 2.6.29 and 2.6.30 kernels and all three valid combinations show the invalid /proc/pid/exe link. The problem does not appear to be dependent on BLCR version, and a quick look at kernel sources suggest the problem may originate in a kernel change between 2.6.25 and 2.6.26. So, I suspect that if you use a kernel 2.6.25 or older the symlink will be correct. If you have a moment, please enter a bug report for this. Based on the kernel change I noticed, this is probably less than a 1-day job to fix and test, but I don't know when I'll be able to start. -Paul Josh Hursey wrote: > I have a Linux box running Fedora 11, and BLCR 0.8.2 > ---------- > shell$ uname -a > Linux cloud9 2.6.29.6-217.2.8.fc11.i586 #1 SMP Sat Aug 15 00:44:39 EDT > 2009 i686 i686 i386 GNU/Linux > ---------- > > I am finding that the /proc/PID/exe link is not restored on cr_restart > (I used the counting example in the distribution). It is valid when > running normally, but after restart the link is invalid (not pointing > to anything). > > I believe that 0.8.1 was working correctly in this regard, but I > cannot verify on this machine at the moment (build error > cr_dest_file.c:189: error: implicit declaration of function > �put_fs_struct�). > > Have others seen this problem? I can send along more info if that > might help. > > -- Josh > > -- Paul H. Hargrove PHHargrove_at_lbl_dot_gov Future Technologies Group Tel: +1-510-495-2352 HPC Research Department Fax: +1-510-486-6900 Lawrence Berkeley National Laboratory