[LU-4308] MPI job causes errors "binary changed while waiting for the page fault lock"

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.5.3
• Affects Version/s: Lustre 2.4.1
• Environment: RHEL 6.4/MLNX OFED 2.0.2.6.8.10
• Severity: 4
• Assignee: Zhenyu Xu
• Reporter: Blake Caldwell

Description

When a MPI job is run, we see many of these messages "binary x changed while waiting for the page fault lock." Is this normal behavior or not? It was also reported here.

https://lists.01.org/pipermail/hpdd-discuss/2013-October/000560.html

Nov 25 13:46:50 rhea25 kernel: Lustre: 105703:0:vvp_io.c:699:vvp_io_fault_start()) binary [0x20000f81c:0x18:0x0] changed while waiting for the page fault lock
Nov 25 13:46:53 rhea25 kernel: Lustre: 105751:0:(vvp_io.c:699:vvp_io_fault_start()) binary [0x20000f81c:0x19:0x0] changed while waiting for the page fault lock
Nov 25 13:46:57 rhea25 kernel: Lustre: 105803:0:(vvp_io.c:699:vvp_io_fault_start()) binary [0x20000f81c:0x1a:0x0] changed while waiting for the page fault lock
Nov 25 13:46:57 rhea25 kernel: Lustre: 105803:0:(vvp_io.c:699:vvp_io_fault_start()) Skipped 1 previous similar message
Nov 25 13:47:00 rhea25 kernel: Lustre: 105846:0:(vvp_io.c:699:vvp_io_fault_start()) binary [0x20000f81c:0x1b:0x0] changed while waiting for the page fault lock
Nov 25 13:47:00 rhea25 kernel: Lustre: 105846:0:(vvp_io.c:699:vvp_io_fault_start()) Skipped 2 previous similar messages
Nov 25 13:47:07 rhea25 kernel: Lustre: 105942:0:(vvp_io.c:699:vvp_io_fault_start()) binary [0x20000f81c:0x1d:0x0] changed while waiting for the page fault lock

Issue Links

• is related to: LU-7198 vvp_io.c:701:vvp_io_fault_start()) binary changed while waiting for the page fault lock