Messages in this thread | | | From | Andi Kleen <> | Subject | Re: 2.6.18-rc3-g3b445eea BUG: warning at /usr/src/linux-git/kernel/cpu.c:51 | Date | Tue, 8 Aug 2006 08:49:37 +0200 |
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> >include/asm-i386/unwind.h::arch_unw_user_mode(): > > return info->regs.eip < PAGE_OFFSET > > || (info->regs.eip >= __fix_to_virt(FIX_VDSO) > > && info->regs.eip < __fix_to_virt(FIX_VDSO) + PAGE_SIZE) > > || info->regs.esp < PAGE_OFFSET; > > Hmm, indeed. Then I'm unclear what the problem might be here.
That code will check for the vsyscall page, but sysenter_entry isn't in the vsyscall page, but in the kernel proper.
So it means the EIP never actually reached the vsyscall page. It should have gone up another level, but didn't.
-Andi
> > >Could this be the problem? > > > >|ENTRY(sysenter_entry) > >| CFI_STARTPROC simple > >| CFI_DEF_CFA esp, 0 > >|==> CFI_REGISTER esp, ebp > >| movl TSS_sysenter_esp0(%esp),%esp > >|sysenter_past_esp: - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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