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Bug 724088 - net-wireless/bluez-5.54: High number of writes per second to /var/lib/bluetooth/..../cache/..../
Summary: net-wireless/bluez-5.54: High number of writes per second to /var/lib/bluetoo...
Status: RESOLVED UPSTREAM
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: Current packages (show other bugs)
Hardware: All Linux
: Normal normal
Assignee: Pacho Ramos
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2020-05-19 20:00 UTC by Johannes Niess
Modified: 2020-11-17 16:08 UTC (History)
0 users

See Also:
Package list:
Runtime testing required: ---


Attachments
Status file for 30:24:32:45:BF:77 (30:24:32:45:BF:77,1.87 KB, text/plain)
2020-05-19 20:00 UTC, Johannes Niess
Details

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Description Johannes Niess 2020-05-19 20:00:16 UTC
Created attachment 640424 [details]
Status file for 30:24:32:45:BF:77

The system writes at a rate of 0,5 MB/sec to /var/lib/bluetooth/00:1A:7D:DA:71:15/cache/30:24:32:45:BF:77, slowly killing my SSD.

The bluetooth device is a common USB dongle, the other end is a Windows 10 laptop (currently in sleep mode). Looks like (almost?) the same file content is written about every 30 seconds. Files in the same directory for a headset and an Android phone do not show this behaviour.

I couldn't find a proper upstream bug tracker or selective key words for a google search.
Comment 1 Sam James archtester Gentoo Infrastructure gentoo-dev Security 2020-05-19 20:15:08 UTC
Seems like using /var/cache may be a good idea.
Comment 2 Pacho Ramos gentoo-dev 2020-05-20 21:46:22 UTC
Please report this directly to upstream mailing list
http://www.bluez.org/development/lists/

Thanks
Comment 3 Johannes Niess 2020-05-29 18:42:29 UTC
No feedback 4 days after posting on the mailing list (https://marc.info/?l=linux-bluetooth&m=159042662909866&w=2). Do you have any contacts for approaching developers personally? The mailing list is flooded with patch postings that also get no visible feedback and discussion.

I am glad to do additional investigation that can get us at the root cause, but I need some guidance.
Comment 4 Pacho Ramos gentoo-dev 2020-05-31 09:02:49 UTC
I don't have any contact... but maybe in their IRC channel it could be easier
Comment 5 Hypfer 2020-11-17 16:08:27 UTC
Szymon Janc just published a patch which fixes this issue


https://marc.info/?l=linux-bluetooth&m=160562866603745&w=2