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x86/debug: Fix the printk() debug output of signal_fault(), do_trap() and do_general_protection()

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Since commit:

  4bcc595ccd "printk: reinstate KERN_CONT for printing"

... the debug output of signal_fault(), do_trap() and do_general_protection()
looks garbled, e.g.:

 traps: conftest[9335] trap invalid opcode ip:400428 sp:7ffeaba1b0d8 error:0
  in conftest[400000+1000]

(note the unintended line break.)

Fix the bug by adding KERN_CONTs.

Signed-off-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Markus Trippelsdorf 2017-04-07 14:09:04 +02:00 committed by Ingo Molnar
parent 6fdc6dd902
commit 1c99a68741
2 changed files with 3 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
arch/x86/kernel/signal.c
View file

@ -846,7 +846,7 @@ void signal_fault(struct pt_regs *regs, void __user *frame, char *where)
task_pid_nr(current) > 1 ? KERN_INFO : KERN_EMERG,
me->comm, me->pid, where, frame,
regs->ip, regs->sp, regs->orig_ax);
print_vma_addr(" in ", regs->ip);
print_vma_addr(KERN_CONT " in ", regs->ip);
pr_cont("\n");
}

4
arch/x86/kernel/traps.c
View file

@ -255,7 +255,7 @@ do_trap(int trapnr, int signr, char *str, struct pt_regs *regs,
pr_info("%s[%d] trap %s ip:%lx sp:%lx error:%lx",
tsk->comm, tsk->pid, str,
regs->ip, regs->sp, error_code);
print_vma_addr(" in ", regs->ip);
print_vma_addr(KERN_CONT " in ", regs->ip);
pr_cont("\n");
}
@ -519,7 +519,7 @@ do_general_protection(struct pt_regs *regs, long error_code)
pr_info("%s[%d] general protection ip:%lx sp:%lx error:%lx",
tsk->comm, task_pid_nr(tsk),
regs->ip, regs->sp, error_code);
print_vma_addr(" in ", regs->ip);
print_vma_addr(KERN_CONT " in ", regs->ip);
pr_cont("\n");
}