On Wed, Mar 18, 2015 at 07:31:33PM +0100, Oleg Nesterov wrote: > On 03/18, Cyrill Gorcunov wrote: > > > > On Wed, Mar 18, 2015 at 06:48:43PM +0100, Oleg Nesterov wrote: > > > > > > Shot in a dark afer a quick grep: restore_gpregs() should initialize ->ss? > > > > It hasn't been needed earlier, if this would help it means abi is broken, > > no? :) > > Otherwise I don't understand what's happening. > > until this commit the kernel simply forgot to restore ->ss in sigreturn(). > > after this commit, if your rt_sigframe has garbage in ->ss then SIGSEGV > is clear.
OK, so setting up a proper ss here should fix problem. > > > > > > Seriously, where is UserX86RegsEntry? > > > > It's in protobif/core-x86.proto, welcome to protobuf hell. > > Still can't find UserX86RegsEntry... OK, perhaps it comes from > user_x86_regs_entry in protobuf/core-x86.proto. Then I guess the patch I sent > can be compiled at least ;) Yeah, protobuf-c mangles "_" in message name so user_x86_regs_entry -> UserX86RegsEntry. Andrew should be able to test it tomorrow (hopefully it's no urgent right? ;) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/