Hi, On 2013-10-28 08:01, Gu Zheng wrote: > Following commits: > 50e244cc79 fb: rework locking to fix lock ordering on takeover > e93a9a8687 fb: Yet another band-aid for fixing lockdep mess > 054430e773 fbcon: fix locking harder > > reworked locking to fix related lock ordering on takeover, and introduced console_lock > into fbmem, but it seems that the new lock sequence(fb_info->lock ---> console_lock) > is against with the one in console_callback(console_lock ---> fb_info->lock), and leads to > a potential deadlock as following: A quick grep shows that there are other places than fbmem.c which use lock_fb_info and console_lock, for example drivers/video/sh_mobile_lcdcfb.c. Tomi
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