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author | David S. Miller <davem@davemloft.net> | 2017-01-28 10:33:06 -0500 |
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committer | David S. Miller <davem@davemloft.net> | 2017-01-28 10:33:06 -0500 |
commit | 4e8f2fc1a55d543717efb70e170b09e773d0542b (patch) | |
tree | 30df1d7fc9dfa24fe2916711a17656682c3f7ec9 /arch/arm64/kernel/traps.c | |
parent | 158f323b9868b59967ad96957c4ca388161be321 (diff) | |
parent | 1b1bc42c1692e9b62756323c675a44cb1a1f9dbd (diff) | |
download | blackbird-op-linux-4e8f2fc1a55d543717efb70e170b09e773d0542b.tar.gz blackbird-op-linux-4e8f2fc1a55d543717efb70e170b09e773d0542b.zip |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Two trivial overlapping changes conflicts in MPLS and mlx5.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/arm64/kernel/traps.c')
-rw-r--r-- | arch/arm64/kernel/traps.c | 28 |
1 files changed, 24 insertions, 4 deletions
diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c index 5b830be79c01..659b2e6b6cf7 100644 --- a/arch/arm64/kernel/traps.c +++ b/arch/arm64/kernel/traps.c @@ -604,17 +604,34 @@ const char *esr_get_class_string(u32 esr) } /* - * bad_mode handles the impossible case in the exception vector. + * bad_mode handles the impossible case in the exception vector. This is always + * fatal. */ asmlinkage void bad_mode(struct pt_regs *regs, int reason, unsigned int esr) { - siginfo_t info; - void __user *pc = (void __user *)instruction_pointer(regs); console_verbose(); pr_crit("Bad mode in %s handler detected on CPU%d, code 0x%08x -- %s\n", handler[reason], smp_processor_id(), esr, esr_get_class_string(esr)); + + die("Oops - bad mode", regs, 0); + local_irq_disable(); + panic("bad mode"); +} + +/* + * bad_el0_sync handles unexpected, but potentially recoverable synchronous + * exceptions taken from EL0. Unlike bad_mode, this returns. + */ +asmlinkage void bad_el0_sync(struct pt_regs *regs, int reason, unsigned int esr) +{ + siginfo_t info; + void __user *pc = (void __user *)instruction_pointer(regs); + console_verbose(); + + pr_crit("Bad EL0 synchronous exception detected on CPU%d, code 0x%08x -- %s\n", + smp_processor_id(), esr, esr_get_class_string(esr)); __show_regs(regs); info.si_signo = SIGILL; @@ -622,7 +639,10 @@ asmlinkage void bad_mode(struct pt_regs *regs, int reason, unsigned int esr) info.si_code = ILL_ILLOPC; info.si_addr = pc; - arm64_notify_die("Oops - bad mode", regs, &info, 0); + current->thread.fault_address = 0; + current->thread.fault_code = 0; + + force_sig_info(info.si_signo, &info, current); } void __pte_error(const char *file, int line, unsigned long val) |