On Tue, Aug 5, 2008 at 8:24 PM, Bob Copeland <me@xxxxxxxxxxxxxxx> wrote: > On Tue, Aug 05, 2008 at 09:29:26AM +0800, Dave Young wrote: >> With the patch I cann't reproduce the bug with 27-rc1 now. >> >> > [<c02375a6>] ? debugfs_create_file+0x46/0x210 >> > [<c02375a6>] ? debugfs_create_file+0x46/0x210 >> > [<c02375a6>] debugfs_create_file+0x46/0x210 >> > [<c02377f1>] debugfs_create_dir+0x21/0x30 >> > [<f8901f6d>] ieee80211_sta_debugfs_add+0x2d/0x150 [mac80211] >> > [<f88eba89>] sta_info_debugfs_add_work+0x89/0x130 [mac80211] >> > [<f890a170>] ? rate_control_pid_add_sta_debugfs+0x0/0x30 [mac80211] > > I wonder if there were two separate problems here. I looked into > this with some detail yesterday and agree with Johannes that the above > trace is on locking the parent directory's i_mutex, but I too couldn't > see any problems with sta_info_debugfs_add_work. Other stuff could also > modify the directory with or without rtnl_lock, but not in a way that > to my untrained eyes would lead to deadlock. Yes,. I think so. It's the original bug for me, while testing I found the mutex deadlock problem. But this week I will have no time to trace it. so if I have time I will keep tracing the problem > > Or is the trace just wrong? > > -- > Bob Copeland %% www.bobcopeland.com > > -- Regards dave -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
