The problem occured when i try to read the file with time dd if=/mnt/lustre/testfile of=/dev/null bs=16k My setup: 1 OST, 1 MDS and 1 client - lustre v 1.0.4 OST running kernel 2.4.20-28.9_lustre.1.0.4smp MDS & client run on kernel 2.4.20-28.9_lustre.1.0.4custom. eth0: Too much work at interrupt, status=0x00000001. LustreError: 3508:(niobuf.c:538:ptlrpc_unregister_bulk()) Unexpectedly long time out: desc c5b9f800 LustreError: 3508:(niobuf.c:539:ptlrpc_unregister_bulk()) LBUG LustreError: dumping log to /tmp/lustre-log-server171.1080474094 ... writing ... LustreError: wrote 5242880 bytes LustreError: 3508:(debug.c:896:portals_run_upcall()) Error -2 invoking portals u pcall /usr/lib/lustre/portals_upcall LBUG,niobuf.c,ptlrpc_unregister_bulk,539; c heck /proc/sys/portals/upcall Lustre: 3477:(socknal_cb.c:1547:ksocknal_process_receive()) [c6b15800] EOF from 0xac1001af ip 172.16.1.175:988 LustreError: 3482:(socknal.c:1009:ksocknal_destroy_conn()) Refusing to complete a partial receive from 0xac1001af, ip 172.16.1.175:988 LustreError: 3482:(socknal.c:1011:ksocknal_destroy_conn()) This may hang communi cations and prevent modules from unloading LustreError: 3508:(niobuf.c:538:ptlrpc_unregister_bulk()) Unexpectedly long time out: desc cd08f800 LustreError: 3508:(niobuf.c:539:ptlrpc_unregister_bulk()) LBUG LustreError: dumping log to /tmp/lustre-log-server171.1080474121 ... writing ... LustreError: wrote 5242880 bytes LustreError: 3508:(debug.c:896:portals_run_upcall()) Error -2 invoking portals u pcall /usr/lib/lustre/portals_upcall LBUG,niobuf.c,ptlrpc_unregister_bulk,539; c heck /proc/sys/portals/upcall Tq. __________________________________ Do you Yahoo!? Yahoo! Finance Tax Center - File online. File on time. http://taxes.yahoo.com/filing.html