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Groups > linux.kernel > #1740774
| From | Josh Poimboeuf <jpoimboe@redhat.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: WARNING: kernel stack frame pointer at ffff880156a5fea0 in bash:2103 has bad value 00007ffec7d87e50 |
| Date | 2017-09-27 16:20 +0200 |
| Message-ID | <uullU-4d4-15@gated-at.bofh.it> (permalink) |
| References | <utJ6W-3zX-11@gated-at.bofh.it> <uu63w-1PM-27@gated-at.bofh.it> <uu6PT-2mP-7@gated-at.bofh.it> <uueu6-7gi-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Wed, Sep 27, 2017 at 08:51:22AM +0200, Richard Weinberger wrote: > Am Mittwoch, 27. September 2017, 00:42:46 CEST schrieb Josh Poimboeuf: > > > Here is another variant of the warning, it matches the attached .config: > > I can take a look at it. Unfortunately, for these types of issues I > > often need the vmlinux file to be able to make sense of the unwinder > > dump. So if you happen to have somewhere to copy the vmlinux to, that > > would be helpful. Or if you give me your GCC version I can try to > > rebuild it locally. > > There you go: > http://git.infradead.org/~rw/bpf_splat/vmlinux.xz Thanks. Can you test this fix? diff --git a/arch/x86/kernel/kprobes/common.h b/arch/x86/kernel/kprobes/common.h index db2182d63ed0..3fc0f9a794cb 100644 --- a/arch/x86/kernel/kprobes/common.h +++ b/arch/x86/kernel/kprobes/common.h @@ -3,6 +3,15 @@ /* Kprobes and Optprobes common header */ +#include <asm/asm.h> + +#ifdef CONFIG_FRAME_POINTER +# define SAVE_RBP_STRING " push %" _ASM_BP "\n" \ + " mov %" _ASM_SP ", %" _ASM_BP "\n" +#else +# define SAVE_RBP_STRING " push %" _ASM_BP "\n" +#endif + #ifdef CONFIG_X86_64 #define SAVE_REGS_STRING \ /* Skip cs, ip, orig_ax. */ \ @@ -17,7 +26,7 @@ " pushq %r10\n" \ " pushq %r11\n" \ " pushq %rbx\n" \ - " pushq %rbp\n" \ + SAVE_RBP_STRING \ " pushq %r12\n" \ " pushq %r13\n" \ " pushq %r14\n" \ @@ -48,7 +57,7 @@ " pushl %es\n" \ " pushl %ds\n" \ " pushl %eax\n" \ - " pushl %ebp\n" \ + SAVE_RBP_STRING \ " pushl %edi\n" \ " pushl %esi\n" \ " pushl %edx\n" \
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Re: WARNING: kernel stack frame pointer at ffff880156a5fea0 in bash:2103 has bad value 00007ffec7d87e50 Josh Poimboeuf <jpoimboe@redhat.com> - 2017-09-27 00:50 +0200
Re: WARNING: kernel stack frame pointer at ffff880156a5fea0 in bash:2103 has bad value 00007ffec7d87e50 Richard Weinberger <richard@sigma-star.at> - 2017-09-27 09:00 +0200
Re: WARNING: kernel stack frame pointer at ffff880156a5fea0 in bash:2103 has bad value 00007ffec7d87e50 Josh Poimboeuf <jpoimboe@redhat.com> - 2017-09-27 16:20 +0200
Re: WARNING: kernel stack frame pointer at ffff880156a5fea0 in bash:2103 has bad value 00007ffec7d87e50 Richard Weinberger <richard@sigma-star.at> - 2017-09-30 22:10 +0200
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