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| author | Ilya Leoshkevich <iii@linux.ibm.com> | 2023-03-10 03:36:48 +0100 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2023-03-20 10:56:49 +0100 |
| commit | 7229ea86e0a0ed117bbc9d1677003c0bb0a5d40e (patch) | |
| tree | bdee73af4d6636a93f22419d58825f1c1618a550 /arch/s390 | |
| parent | s390: simplify dynamic sysctl registration for appldata_register_ops (diff) | |
| download | linux-7229ea86e0a0ed117bbc9d1677003c0bb0a5d40e.tar.xz linux-7229ea86e0a0ed117bbc9d1677003c0bb0a5d40e.zip | |
s390/dumpstack: resolve userspace last_break
report_user_fault() currently does not show which library last_break
points to. Call print_vma_addr() to find out; the output now looks
like this:
Last Breaking-Event-Address:
[<000003ffaa2a56e4>] libc.so.6[3ffaa180000+251000]
For kernel it's unchanged:
Last Breaking-Event-Address:
[<000000000030fd06>] trace_hardirqs_on+0x56/0xc8
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/kernel/dumpstack.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/s390/kernel/dumpstack.c b/arch/s390/kernel/dumpstack.c index 1e3233eb510a..f257058d0828 100644 --- a/arch/s390/kernel/dumpstack.c +++ b/arch/s390/kernel/dumpstack.c @@ -152,7 +152,13 @@ void show_stack(struct task_struct *task, unsigned long *stack, static void show_last_breaking_event(struct pt_regs *regs) { printk("Last Breaking-Event-Address:\n"); - printk(" [<%016lx>] %pSR\n", regs->last_break, (void *)regs->last_break); + printk(" [<%016lx>] ", regs->last_break); + if (user_mode(regs)) { + print_vma_addr(KERN_CONT, regs->last_break); + pr_cont("\n"); + } else { + pr_cont("%pSR\n", (void *)regs->last_break); + } } void show_registers(struct pt_regs *regs) |