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] -- To unsubscribe from this list: send the line "unsubscribe linux-bcache" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
