Hebenstreit, Michael
2011-Feb-18 16:03 UTC
[Lustre-discuss] trying to port 1.8.5 to RH6 I''m facing Kernel panics due to an error in the handling of page->private
If I understand everything correctly page->private should contain either 0 or a pointer to kernel space. For reasons I can not currently comprehend sometimes the value is set to 2. llap_cast_private() then tries to access page->private->llap_magic, and naturally this leads to NULL pointer dereference this problem seems to creep up only during parallel reads/writes any ideas? anyone doing a RH6 port of the 1.8 branch (and no, 2.1 won''t help me, my backends are 1.7 and can not be changed at this time)? thanks Michael ------------------------------------------------------------------------ Michael Hebenstreit Senior Cluster Architect Intel Corporation Software and Services Group/HTE 2800 N Center Dr, DP3-307 Tel.: +1 253 371 3144 WA 98327, DuPont UNITED STATES E-mail: michael.hebenstreit at intel.com