On 20.02.2016 08:41, Michael Cree wrote: > On Sat, Feb 20, 2016 at 12:09:49AM -0500, Alex Winbow wrote: >> I'm unable to boot kernel 4.2 or 4.4 on SX164. aboot loads the kernel >> and >> the initrd successfully, then returns to the SRM prompt -- no error >> messages. (I'm using kernel 3.16 at present.) >> >> Are there any known issues with Linux 4.x over 3.x on alpha, or on >> SX164/EB164 in particular? > > Yes, I have seen the same thing with the Debian 4.3 generic kernel. > But a self-built 4.3 kernel boots fine.
It might be related, but on parisc I'm seeing the same problem that kernels above 4.3 crash and won't boot. There have been a few reports about it, e.g. https://www.spinics.net/lists/linux-parisc/msg06624.html I'm trying to debug it, but like as for Michael the debian kernel crashes, while my self-built 4.3 kernel boots fine. It seems to be related if drivers are built-in or loaded as modules during bootup. One assumption I have is that it mainly affects parisc and alpha, because those two arches don't have ARCH_HAS_SG_CHAIN defined. I stumbled over commit 10c95ed9aa2970e05fedb4ac8b3ce1b934dab17b (which seems fine in general) [https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=10c95ed9aa2970e05fedb4ac8b3ce1b934dab17b] but maybe the crypto modules and the scsi libs are involved here and the scatterlist changes lead to memory corruption somewhere. Helge
