Messages in this thread Patch in this message | | | Date | Tue, 8 Jun 2021 20:17:20 +0200 | From | Peter Zijlstra <> | Subject | Re: [PATCH v3 16/16] objtool,x86: Rewrite retpoline thunk calls |
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On Tue, Jun 08, 2021 at 10:29:56AM -0700, Nathan Chancellor wrote: > On 6/8/2021 10:22 AM, Peter Zijlstra wrote:
> > Since it's a VM, can you use the gdb-stub to ask it where it's stuck? > > > > Unfortunately, this is the VM provided by the Windows Subsystem for Linux so > examining it is nigh-impossible :/ I am considering bisecting the transforms > that objtool does to try and figure out the one that causes the machine to > fail to boot or try to reproduce in a different hypervisor, unless you have > any other ideas.
Does breaking Windows earn points similar to breaking the binary drivers? :-) :-)
The below should kill this latest transform and would quickly confirm if the that is causing your problem. If that's not it, what was your last known working version?
diff --git a/tools/objtool/check.c b/tools/objtool/check.c index e5947fbb9e7a..d0f231b9c5a1 100644 --- a/tools/objtool/check.c +++ b/tools/objtool/check.c @@ -1857,10 +1857,10 @@ static int decode_sections(struct objtool_file *file) * Must be after add_special_section_alts(), since this will emit * alternatives. Must be after add_{jump,call}_destination(), since * those create the call insn lists. - */ ret = arch_rewrite_retpolines(file); if (ret) return ret; + */ return 0; }
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