Dne 11.2.2016 v 21:47 Richard Davies napsal(a):
Hi, We have been seeing occasional "dmsetup resume" lockups on a variety of kernels when swapping tables. I am wondering if we are making a simple scripting mistake (e.g. we do not run "dmsetup suspend", but my impression is that the need for this was replaced by INACTIVE tables?) Alternatively, what can we do to help debug this further, please?
There could be number of reasons - but since you mention you operate with life device - aren't you actually running your 'dmsetup from a device you manipulate with - aka your root volume ? lvm2 locks itself into memory to avoid any page swapping issues. You could also try debugging kernel on serial console with sysrq+t to see what's get blocked on disk access. Regards Zdenek -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
