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Date: Wed, 5 Mar 2014 20:57:03 +0800 From: Fengguang Wu <fengguang.wu@...el.com> To: Martin Pitt <martin.pitt@...ntu.com> Cc: Johannes Berg <johannes.berg@...el.com>, linux-wireless@...r.kernel.org, netdev@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [mac80211_hwsim] WARNING: CPU: 0 PID: 1 at include/linux/kref.h:47 kobject_get() Greetings, I got the below dmesg and the first bad commit is commit 9ea927748ced4953f1e9a0f1fa1fdeacd1018b4e Author: Martin Pitt <martin.pitt@...ntu.com> AuthorDate: Mon Apr 8 11:30:01 2013 +0200 Commit: Johannes Berg <johannes.berg@...el.com> CommitDate: Wed Apr 10 20:23:50 2013 +0200 mac80211_hwsim: Register and bind to driver [ 3.588600] mac80211_hwsim: ieee80211_register_hw failed (-2) [ 3.590170] ------------[ cut here ]------------ [ 3.590170] ------------[ cut here ]------------ [ 3.591332] WARNING: CPU: 0 PID: 1 at include/linux/kref.h:47 kobject_get+0x33/0x50() ... [ 3.695323] WARNING: CPU: 0 PID: 1 at fs/kernfs/dir.c:1216 kernfs_remove_by_name_ns+0x31/0x80() ... [ 3.814723] BUG: unable to handle kernel paging requestpaging request at 883d11f0 Bisect log shows that the problems are also present in linux-next. git bisect start v3.10 v3.9 -- git bisect bad ff89acc563a0bd49965674f56552ad6620415fe2 # 22:47 0- 6 Merge branch 'rcu/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu git bisect bad 24d0c2542b38963ae4d5171ecc0a2c1326c656bc # 22:52 0- 2 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs git bisect good 151173e8ce9b95bbbbd7eedb9035cfaffbdb7cb2 # 23:00 23+ 23 Merge tag 'for-v3.10' of git://git.infradead.org/battery-2.6 git bisect bad e95893004104054d49406fd108fefa3ddc054366 # 23:03 0- 1 Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost git bisect good 8a72f3820c4d14b27ad5336aed00063a7a7f1bef # 23:09 23+ 23 Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile git bisect bad 600fe9751aeb6f6b72de84076a05c5b8c04152c0 # 23:12 0- 3 ipc_schedule_free() can do vfree() directly now git bisect bad 126de6b20bfb82cc19012d5048f11f339ae5a021 # 23:16 0- 3 linkage.h: fix build breakage due to symbol prefix handling git bisect good 251df49db3327c64bf917bfdba94491fde2b4ee0 # 23:22 23+ 23 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input git bisect bad 73287a43cc79ca06629a88d1a199cd283f42456a # 23:25 0- 1 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next git bisect good 953c96e0d85615d1ab1f100e525d376053294dc2 # 23:37 23+ 0 tg3: Use bool not int git bisect bad 4fc4118cdb29ab946b8a586fc766ebb6ae1e1c90 # 23:42 0- 7 wil6210: more Rx descriptor accessor functions git bisect good e73dcfbf061b524fe9aaef56cf3c2e234a45ec19 # 23:52 23+ 0 Bluetooth: hidp: fix sending output reports on intr channel git bisect good d5590bba37f3c7d496195648532d5313abb43891 # 23:58 23+ 0 NFC: pn533: Re-group fields in struct pn533 git bisect bad 06d961a8e210035bff7e82f466107f9ab4a8fd94 # 00:07 0- 16 mac80211/minstrel: use the new rate control API git bisect bad 97990a060e6757f48b931a3946b17c1c4362c3fb # 00:11 0- 4 nl80211: allow using wdev identifiers to get scan results git bisect bad 85220d71bf3ca1ba9129e0744247ae5f61bec559 # 00:12 0- 1 mac80211: support secondary channel offset in CSA git bisect bad 0ca54f6c5fd4ce58aa044d1fc7f00d7f6cf2801c # 00:14 0- 1 mac80211: provide SSID in IBSS mode git bisect bad 3088f7d2db42925808c4b43a6258647ee4d1dd5f # 00:15 0- 2 mac80211: stringify another plink state git bisect bad 9d6d6f4924133567a108a862d9cf949cd03f71cb # 00:17 0- 1 mac80211: unset FC retry bit in mesh fwding path git bisect bad 9ea927748ced4953f1e9a0f1fa1fdeacd1018b4e # 00:21 0- 2 mac80211_hwsim: Register and bind to driver # first bad commit: [9ea927748ced4953f1e9a0f1fa1fdeacd1018b4e] mac80211_hwsim: Register and bind to driver git bisect good ddc4db2e3d5393ede7a9222bb3b7522a603a4678 # 00:35 69+ 0 mac80211: make ieee802_11_parse_elems an inline git bisect bad faa2e6fb0a98c9caa8995acf3222db9f7f029395 # 00:35 0- 19 Add linux-next specific files for 20140221 git bisect bad 8427defd087ae6c5eaea9d609dfe7f165568accd # 00:38 0- 2 MAINTAINERS: add maintainer entry for Armada DRM driver git bisect bad b148a42ba7823e34971cd4e5b05a5c74fa3311ed # 00:41 0- 2 Add linux-next specific files for 20140228 Thanks, Fengguang View attachment "dmesg-quantal-inn-32:20140224035628:i386-randconfig-xp1-02240043::" of type "text/plain" (89924 bytes) View attachment "config-3.14.0-rc3-next-20140221-04488-gfaa2e6f" of type "text/plain" (92120 bytes)
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