On Thu, 20 Feb 2014, Vivek Dasmohapatra wrote:
Update: Found an offset for sda11 which does not deadlock:
Deadlocking configurations:
backing: sda11; default offset from sda (NOT a multiple of 4 KiB)
backing: sdb1; default offset from sdb (!= 4 KiB)
backing: sda11; offset from sda is:
- a multiple of 4 KiB
- a multiple of 4 MiB
- a multplie of 16 MiB
Non-deadlocking configurations:
backing: sdb
backing: sdb1; offset from start of sdb is 4096 B
backing: sda11; offset from start of sda is 78486397440 B
(153293745 sectors)
for reference, sda1's offset is 1048576 B (2048 sectors)
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