abhisekpan at gmail.com
2012-Sep-06 13:35 UTC
[Lustre-discuss] Lustre-error on MPIIO shared file operation
Hi, I am trying to run the IOR benchmark with the MPIIO API on a lustre installation. There are two client nodes involved, each running one IOR process, and when I use the shared file option in IOR, which means that both the nodes operate on the same file, I get an error: kernel:LustreError: 5142:0:(cl_page.c:1367:cl_page_completion()) ASSERTION( (!(pg->cp_type == CPT_CACHEABLE) || (!PageWriteback(cl_page_vmpage(env, pg)))) ) failed: Message from syslogd at machinename ... kernel:LustreError: 5142:0:(cl_page.c:1367:cl_page_completion()) LBUG This does not happen when I use the "separate file per process option". Please let me know if you have any ideas about why this is happening. Any help would be greatly appreciated! Thanks a lot, -- Abhisek Live Long and Prosper
Ned Bass
2012-Sep-10 18:04 UTC
[Lustre-discuss] Lustre-error on MPIIO shared file operation
Hi, On Thu, Sep 06, 2012 at 06:35:15AM -0700, abhisekpan at gmail.com wrote:> kernel:LustreError: 5142:0:(cl_page.c:1367:cl_page_completion()) > ASSERTION( (!(pg->cp_type == CPT_CACHEABLE) || > (!PageWriteback(cl_page_vmpage(env, pg)))) ) failed:See http://jira.whamcloud.com/browse/LU-1680 and http://jira.whamcloud.com/browse/LU-1442. The LU-1442 patch may fix that assertion (landed for 2.1.3 and 2.3.0). Ned