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Groups > linux.kernel > #1722270
| From | Mike Galbraith <efault@gmx.de> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: tip -ENOBOOT - bisected to locking/refcounts, x86/asm: Implement fast refcount overflow protection |
| Date | 2017-08-29 11:30 +0200 |
| Message-ID | <ujL0m-PP-15@gated-at.bofh.it> (permalink) |
| References | <ujKxj-oP-7@gated-at.bofh.it> <ujKxj-oP-13@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Tue, 2017-08-29 at 10:58 +0200, Ingo Molnar wrote: > * Mike Galbraith <efault@gmx.de> wrote: > > > Greetings, > > > > Take 2 of KVM bisect as you work fingered $subject. Take 1 was stymied > > by build dependencies (aa5d1b81, df340524) which I foolishly tried to > > skip, leading git bisect to end up handing me a list of commits that > > might be busted. During take 2, I added those two as required. > > > > Symptom is a few splats as below, with box finally hanging. Network > > comes up, but neither ssh nor console login is possible. > > Just to double check, does the patch below also cure the regression? > If we don't find the bug it might be safer than a full revert. I reverted it, and vbox now boots. Should I still try the below? > > Thanks, > > Ingo > > arch/x86/Kconfig | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig > index d04809921993..3b83ef8f1e9b 100644 > --- a/arch/x86/Kconfig > +++ b/arch/x86/Kconfig > @@ -55,7 +55,7 @@ config X86 > select ARCH_HAS_KCOV if X86_64 > select ARCH_HAS_MMIO_FLUSH > select ARCH_HAS_PMEM_API if X86_64 > - select ARCH_HAS_REFCOUNT > +# select ARCH_HAS_REFCOUNT > select ARCH_HAS_UACCESS_FLUSHCACHE if X86_64 > select ARCH_HAS_SET_MEMORY > select ARCH_HAS_SG_CHAIN
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Re: tip -ENOBOOT - bisected to locking/refcounts, x86/asm: Implement fast refcount overflow protection Ingo Molnar <mingo@kernel.org> - 2017-08-29 11:00 +0200
Re: tip -ENOBOOT - bisected to locking/refcounts, x86/asm: Implement fast refcount overflow protection Mike Galbraith <efault@gmx.de> - 2017-08-29 11:30 +0200
Re: tip -ENOBOOT - bisected to locking/refcounts, x86/asm: Implement fast refcount overflow protection Ingo Molnar <mingo@kernel.org> - 2017-08-29 11:30 +0200
Re: tip -ENOBOOT - bisected to locking/refcounts, x86/asm: Implement fast refcount overflow protection Mike Galbraith <efault@gmx.de> - 2017-08-29 12:10 +0200
Re: tip -ENOBOOT - bisected to locking/refcounts, x86/asm: Implement fast refcount overflow protection Kees Cook <keescook@chromium.org> - 2017-08-29 17:40 +0200
Re: tip -ENOBOOT - bisected to locking/refcounts, x86/asm: Implement fast refcount overflow protection Mike Galbraith <efault@gmx.de> - 2017-08-29 18:40 +0200
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