cifs

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Tried running the regression tests against for-next and saw crash
early in the test run in

# FS QA Test No. cifs/006
#
# check deferred closes on handles of deleted files
#
umount: /mnt/test: not mounted.
umount: /mnt/test: not mounted.
umount: /mnt/scratch: not mounted.
umount: /mnt/scratch: not mounted.
./run-xfstests.sh: line 25: 4556 Segmentation fault rmmod cifs
modprobe: ERROR: could not insert 'cifs': Device or resource busy

More information here:
http://smb311-linux-testing.southcentralus.cloudapp.azure.com/#/builders/5/builds/123/steps/14/logs/stdio

Are you also seeing that?  There are not many likely candidates for
what patch is causing the problem (could be related to the folios
changes) e.g.

7c1ac89480e8 cifs: Enable large folio support
3ee1a1fc3981 cifs: Cut over to using netfslib
69c3c023af25 cifs: Implement netfslib hooks
c20c0d7325ab cifs: Make add_credits_and_wake_if() clear deducted credits
edea94a69730 cifs: Add mempools for cifs_io_request and
cifs_io_subrequest structs
3758c485f6c9 cifs: Set zero_point in the copy_file_range() and
remap_file_range()
1a5b4edd97ce cifs: Move cifs_loose_read_iter() and
cifs_file_write_iter() to file.c
dc5939de82f1 cifs: Replace the writedata replay bool with a netfs sreq flag
56257334e8e0 cifs: Make wait_mtu_credits take size_t args
ab58fbdeebc7 cifs: Use more fields from netfs_io_subrequest
a975a2f22cdc cifs: Replace cifs_writedata with a wrapper around
netfs_io_subrequest
753b67eb630d cifs: Replace cifs_readdata with a wrapper around
netfs_io_subrequest
0f7c0f3f5150 cifs: Use alternative invalidation to using launder_folio
2e9d7e4b984a mm: Remove the PG_fscache alias for PG_private_2

Any ideas?

-- 
Thanks,

Steve




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