Hello,
I can definitely compile 4.18-rc3, but perhaps you mean 4.18-rc4, which
is now the latest?
Anyway, the disk setups between these 2 machines are fairly similar (and
I even swapped RAID controllers between the systems to verify it isn't a
controller issue). However, I can elaborate on the differences if you're
interested.
Thanks!
-Cameron
On 07/12/2018 06:03 AM, Coly Li wrote:
On 2018/7/10 2:51 AM, Cameron Berkenpas wrote:
Some other details I just remembered.
Hi Cameron,
And I can trigger this hang whether the bcache device (ie, /dev/bcache0)
is formatted or not.
While re-attaching the cache device hangs, I can still mount the
filesystem... but any attempt to access the filesystem will hang
indefinitely (ie, ls).
While PPC64LE is PPC64 in little endian mode, is it possible there's
some codepaths that are assuming PPC is always big endian? I've heard
this is the case with some userspace software.
So far bcache does not support big endian, and I am working on it at
mean time. From the kernel and user space tool, I don't see any explicit
big endian code indeed. So if PPC64LE is similar to x86-64, I will take
this as a deadlock issue. But you are sure this won't happen on x64-64
machine, then there should be some corner case that people neglected before.
Thanks.
Coly Li
[snipped]
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