On Mon, 2018-07-30 at 11:40 -0700, Bart Van Assche wrote: +AD4- A long time ago the unfortunate decision was taken to add a self- +AD4- deletion attribute to the sysfs SCSI device directory. That decision +AD4- was unfortunate because self-deletion is really tricky. We can't drop +AD4- that attribute because widely used user space software depends on it, +AD4- namely the rescan-scsi-bus.sh script. Hence this patch that avoids +AD4- that writing into that attribute triggers a deadlock. See also commit +AD4- 7973cbd9fbd9 (+ACIAWw-PATCH+AF0- add sysfs attributes to scan and delete +AD4- scsi+AF8-devices+ACI-). +AFs- ... +AF0- During my kernel tests of today I noticed that this patch makes booting significantly slower: boot time for a VM increases from 6s to 157s. Martin, please drop this patch series. Thanks, Bart.