Messages in this thread | | | From | Andi Kleen <> | Subject | Re: NFS: Unable to handle kernel NULL pointer dereference at nfs_set_page_dirty+0xd/0x5d in 2.6.21rc7-git6 | Date | Tue, 24 Apr 2007 20:19:11 +0200 |
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> > 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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