>
> Does this patch fix it?
Didn't hit that particular oops with that anymore in several LTP runs and
your patch applied, but got this data corruption:
doio(rwtest04) (20172) 19:01:03
---------------------
*** DATA COMPARISON ERROR ***
check_file(/tmp/ltp-14369/mm-sync-20156, 12754624, 23879, R:20172:bigfoot:doio*,
21, 0) failed
Comparison fd is 5, with open flags 0
Corrupt regions follow - unprintable chars are represented as '.'
-----------------------------------------------------------------
corrupt bytes starting at file offset 12754624
1st 32 expected bytes: R:20172:bigfoot:doio*R:20172:big
1st 32 actual bytes: ................................
Request number 622
fd 4 is file /tmp/ltp-14369/mm-sync-20156 - open flags are 010002 O_RD
WR,O_SYNC,
write done at file offset 12754624 - pattern is R (0122)
number of requests is 1, strides per request is 1
i/o byte count = 23879
memory alignment is unaligned
syscall: mmap-write(NULL, 12800000, PROT_WRITE, MAP_SHARED, 4, 0)
file is mmaped to: 0x2b982c7ca000
file-mem=0x2b982d3f3ec0, length=23879, buffer=0x52d543
doio(rwtest04) (20169) 19:01:03
---------------------
(parent) pid 20172 exited because of data compare errors
To reproduce: run runltplite.sh of LTP over NFS a few times
-Andi
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