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SubjectORC unwinder and 'reliable' flag to printk_stack_address()
Hi Josh,

I just got the below stack trace with current Linus' tree with ORC
unwinder enabled:

[ 8.652765] Call Trace:
[ 8.652767] dump_stack+0x7c/0xbf
[ 8.652769] print_circular_bug+0x2d3/0x2e0
[ 8.652771] check_prev_add+0x666/0x700
[ 8.652772] ? print_bfs_bug+0x40/0x40
[ 8.652775] lock_commit_crosslock+0x3f1/0x570
[ 8.652777] complete+0x24/0x60
[ 8.652779] __kthread_parkme+0x42/0x90
[ 8.652780] smpboot_thread_fn+0x92/0x210
[ 8.652782] kthread+0x145/0x180
[ 8.652783] ? sort_range+0x20/0x20
[ 8.652785] ? kthread_create_on_node+0x40/0x40
[ 8.652787] ret_from_fork+0x2a/0x40

Please note the kthread_create_on_node(), sort_range() and print_bfs_bug()
entries ... I believe they actually shouldn't be there at all. All of them
are at the last byte belonging to the function. Am I missing something?

Thanks,

--
Jiri Kosina
SUSE Labs

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