Hello,

after an upgrade from 42.2 based kernel to 42.3 current git master i'm getting
XFS in memory data corruptions on more than 10 different servers under high
load.

complete dmesg output is:
XFS (bcache1): metadata I/O error: block 0x575b6d70 ("xfs_trans_read_buf_map")
error 4 numblks 16
XFS (bcache1): xfs_imap_to_bp: xfs_trans_read_buf() returned error -4.
XFS (bcache1): xfs_do_force_shutdown(0x8) called from line 3519 of file
fs/xfs/xfs_inode.c. Return address = 0xffffffff993441ff
XFS (bcache1): Corruption of in-memory data detected. Shutting down
filesystem
XFS (bcache1): Please umount the filesystem and rectify the problem(s)
XFS (bcache1): xfs_log_force: error -5 returned.
XFS (bcache1): xfs_log_force: error -5 returned.
XFS (bcache1): xfs_log_force: error -5 returned.

Greets,
Stefan