Ben Hutchings (2018-08-02): > Someone else suggested this might be related to using "blk-mq", so > could you try with these parameter: > > dm_mod.use_blk_mq=0 scsi_mod.use_blk_mq=0 The machine ran for two days withh these options, and no strange I/O freeze happened. It is still a bit early to be sure, but it seems to be the culprit. Thanks for your help. If you need any extra information to bring the fix to other people who might be affected, please let me know. > Also, do you have laptop-mode-tools installed? No. This machine is a mini-PC, not a laptop, it only runs on sector. By the way, the hard drive is a 7200 RPM 2.5"; they are uncommon, it could be related to the issue. Regards, -- Nicolas George
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