[LU-3642] make seq_proc_write_common() safer - Whamcloud Community JIRA

Details

Type: Bug
Resolution: Fixed
Priority: Critical
Fix Version/s: Lustre 2.5.0
Affects Version/s: Lustre 2.1.6, Lustre 2.4.1, Lustre 2.5.0
Labels:
None

Severity:
3
Rank (Obsolete):
9376

Description

Writing arbitrary values to the /proc/fs/lustre/seq/ctl-*/space tunable is dangerous and could make a filesystem unusable. It should be limited to shrinking the available space, instead of allowing arbitrary resetting of the sequence space, which can corrupt the sequence assignments and allow permanent filesystem corruption (e.g. duplicate sequences/FIDs).

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Issue Links

is related to

LU-3565 HSM: Allow specifying minimum FID sequence at format time

Resolved

Activity

[LU-3642] make seq_proc_write_common() safer

Andreas Dilger made changes - 08/Jun/15 7:44 PM

Link

New: This issue is related to ~~LU-3565~~ [ ~~LU-3565~~ ]

Peter Jones made changes - 26/Sep/13 2:54 PM

Assignee	Original: WC Triage [ wc-triage ]	New: Andreas Dilger [ adilger ]
Resolution		New: Fixed [ 1 ]
Status	Original: Open [ 1 ]	New: Resolved [ 5 ]

Peter Jones made changes - 26/Sep/13 2:54 PM

Fix Version/s		New: Lustre 2.5.0 [ 10295 ]
Fix Version/s	Original: Lustre 2.6.0 [ 10595 ]

Jodi Levi (Inactive) made changes - 05/Sep/13 6:50 PM

Fix Version/s

New: Lustre 2.6.0 [ 10595 ]

Jodi Levi (Inactive) made changes - 05/Sep/13 6:49 PM

Parent	Original: ~~LU-3362~~ [ 19070 ]
Severity		New: 3 [ 10022 ]
Issue Type	Original: Technical task [ 7 ]	New: Bug [ 1 ]

Andreas Dilger created issue - 25/Jul/13 10:29 PM

People

Assignee:: Andreas Dilger

Reporter:: Andreas Dilger

Votes:: 0 Vote for this issue

Watchers:: 2 Start watching this issue

Dates

Created:: 25/Jul/13 10:29 PM

Updated:: 08/Jun/15 7:44 PM

Resolved:: 26/Sep/13 2:54 PM