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Bug #55129
closedclient: get stuck forever when the forward seq exceeds 256
% Done:
0%
Source:
Backport:
quincy,pacific
Regression:
No
Severity:
3 - minor
Reviewed:
Affected Versions:
ceph-qa-suite:
Component(FS):
Client, kceph, libcephfs
Labels (FS):
Pull request ID:
Tags (freeform):
Merge Commit:
Fixed In:
v17.0.0-11653-g7879e86f505
Released In:
v18.2.0~2360
Upkeep Timestamp:
2025-07-14T05:13:56+00:00
Description
The type of 'num_fwd' in ceph 'MClientRequestForward' is 'int32_t',
while in 'ceph_mds_request_head' the type is '__u8'. So in case
the request bounces between MDSes exceeding 256 times, the client
will get stuck.
In this case it's ususally a bug in MDS and continue bouncing the
request makes no sense.
Teuthology test:
Related ceph PR:
Updated by Xiubo Li almost 4 years ago
The kclient fixing patchwork is: https://patchwork.kernel.org/project/ceph-devel/list/?series=627352
Updated by Xiubo Li almost 4 years ago
- Copied to Bug #55130: kclient: get stuck forever when the forward seq exceeds 256 added
Updated by Venky Shankar almost 4 years ago
- Status changed from Fix Under Review to Pending Backport
Updated by Upkeep Bot almost 4 years ago
- Copied to Backport #55345: quincy: client: get stuck forever when the forward seq exceeds 256 added
Updated by Upkeep Bot almost 4 years ago
- Copied to Backport #55346: pacific: client: get stuck forever when the forward seq exceeds 256 added
Updated by Xiubo Li almost 4 years ago
- Related to Bug #55409: client: incorrect operator precedence in Client.cc added
Updated by Xiubo Li over 3 years ago
- Status changed from Pending Backport to Resolved
Updated by Upkeep Bot 8 months ago
- Merge Commit set to 7879e86f5051467866583e94df134d90a28af0f2
- Fixed In set to v17.0.0-11653-g7879e86f505
- Released In set to v18.2.0~2360
- Upkeep Timestamp set to 2025-07-14T05:13:56+00:00
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