Without KERN_CONT, the symbol will appear on a new line, making stack
traces completely unreadable:
Call Trace:
[<6008e891>] ?
printk+0x0/0x94
[<6001cce6>]
show_stack+0xfe/0x15b
[<600666ec>] ?
dump_stack_print_info+0xe1/0xea
[<6008e891>] ?
printk+0x0/0x94
[<6023e826>] ?
bust_spinlocks+0x0/0x4f
[<602343b8>]
dump_stack+0x2a/0x2c
[<6008e662>]
panic+0x170/0x31e
[<6008e4f2>] ?
panic+0x0/0x31e
This makes it readable again:
Call Trace:
[<6008e891>] ? printk+0x0/0x94
[<6001cce6>] show_stack+0xfe/0x15b
[<600666ec>] ? dump_stack_print_info+0xe1/0xea
[<6008e891>] ? printk+0x0/0x94
[<6023e826>] ? bust_spinlocks+0x0/0x4f
[<602343b8>] dump_stack+0x2a/0x2c
[<6008e662>] panic+0x170/0x31e
Signed-off-by: Vegard Nossum <[email protected]>
---
arch/um/kernel/sysrq.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/um/kernel/sysrq.c b/arch/um/kernel/sysrq.c
index a76295f7ede9..edf1f80123e7 100644
--- a/arch/um/kernel/sysrq.c
+++ b/arch/um/kernel/sysrq.c
@@ -22,7 +22,7 @@ static void _print_addr(void *data, unsigned long address,
int reliable)
{
pr_info(" [<%08lx>]", address);
pr_cont(" %s", reliable ? "" : "? ");
- print_symbol("%s", address);
+ print_symbol(KERN_CONT "%s", address);
pr_cont("\n");
}
--
2.12.0.rc0
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