Stop enabling interrupts when reentering kdb on arm64
When we raise a data abort from the kernel we need to enable interrupts, however we shouldn't be doing this when in the kernel debugger. In this case interrupts can lead to a further panic as they don't expect to be run from such a context. MFC after: 2 weeks Sponsored by: DARPA, AFRL
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svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=353920
@ -179,6 +179,8 @@ data_abort(struct thread *td, struct trapframe *frame, uint64_t esr,
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if (lower)
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map = &p->p_vmspace->vm_map;
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else {
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intr_enable();
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/* The top bit tells us which range to use */
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if (far >= VM_MAXUSER_ADDRESS) {
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map = kernel_map;
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@ -316,7 +318,6 @@ do_el1h_sync(struct thread *td, struct trapframe *frame)
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case EXCP_INSN_ABORT:
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case EXCP_DATA_ABORT:
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far = READ_SPECIALREG(far_el1);
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intr_enable();
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data_abort(td, frame, esr, far, 0,
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exception == EXCP_INSN_ABORT);
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break;
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