[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] [xen stable-4.5] x86/traps: avoid using current too early on boot
commit 36a7c54a698db7d087873b312087cfa64de33175 Author: Andrew Cooper <andrew.cooper3@xxxxxxxxxx> AuthorDate: Mon Jul 13 13:54:47 2015 +0200 Commit: Jan Beulich <jbeulich@xxxxxxxx> CommitDate: Mon Jul 13 13:54:47 2015 +0200 x86/traps: avoid using current too early on boot Early on boot, current has the sentinel value 0xfffff000. Blindly using it in show_registers() causes a nested failure and no useful information printed from an early crash. Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx> master commit: 142473cfce41a565898e0fa33dc98a1f5e41abe4 master date: 2015-06-25 14:57:04 +0200 --- xen/arch/x86/x86_64/traps.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/xen/arch/x86/x86_64/traps.c b/xen/arch/x86/x86_64/traps.c index 8a4b584..6477d1d 100644 --- a/xen/arch/x86/x86_64/traps.c +++ b/xen/arch/x86/x86_64/traps.c @@ -86,7 +86,7 @@ void show_registers(const struct cpu_user_regs *regs) struct cpu_user_regs fault_regs = *regs; unsigned long fault_crs[8]; enum context context; - struct vcpu *v = current; + struct vcpu *v = system_state >= SYS_STATE_smp_boot ? current : NULL; if ( guest_mode(regs) && has_hvm_container_vcpu(v) ) { -- generated by git-patchbot for /home/xen/git/xen.git#stable-4.5 _______________________________________________ Xen-changelog mailing list Xen-changelog@xxxxxxxxxxxxx http://lists.xensource.com/xen-changelog
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