[arm64] kernel BUG at /build/linux-StrpB2/linux-4.4.0/fs/ext4/inode.c:2394!
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
Undecided
|
dann frazier | ||
Xenial |
Fix Released
|
Undecided
|
dann frazier |
Bug Description
On 2 socket ThunderX systems, a BUG() is triggered by the ext4 filesystem shortly after boot:
[ 230.637307] Call trace:
[ 230.641753] [<ffff8000002ea
[ 230.650515] [<ffff8000002ee
[ 230.658259] [<ffff8000001dc
[ 230.665639] [<ffff800000287
[ 230.674071] [<ffff800000288
[ 230.682161] [<ffff800000288
[ 230.690242] [<ffff800000288
[ 230.697704] [<ffff800000289
[ 230.704879] [<ffff8000000dd
[ 230.712661] [<ffff8000000de
[ 230.720164] [<ffff8000000e4
[ 230.727030] [<ffff800000085
[ 230.734301] Code: a94573fb a8cf7bfd d65f03c0 d503201f (d4210000)
[ 230.742400] ---[ end trace 600acdba70af5dd0 ]---
This was root caused to an issue with PTE bits that ext4 trips over when doing a PageWriteback() check.
Changed in linux (Ubuntu Xenial): | |
status: | In Progress → Fix Committed |
description: | updated |
Upstream thread, for reference: http:// www.spinics. net/lists/ arm-kernel/ msg489683. html