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Message-ID: <20110226082149.GA9623@tiehlicka.suse.cz> Date: Sat, 26 Feb 2011 09:21:49 +0100 From: Michal Hocko <mhocko@...e.cz> To: LKML <linux-kernel@...r.kernel.org> Cc: Eric Dumazet <eric.dumazet@...il.com>, David Miller <davem@...emloft.net>, torvalds@...ux-foundation.org, ebiederm@...ssion.com Subject: Another list corruption in networking stack with 2.6.38-rc6-00020-gd8204a3? Hi, I have just seen another list head corruption when returning back from suspend to RAM. This time it is caught by LIST_DEBUG code: [107347.331504] wlan0: deauthenticated from 00:24:01:93:0a:00 (Reason: 6) [107347.392082] cfg80211: Calling CRDA to update world regulatory domain [107361.892264] ------------[ cut here ]------------ [107361.892280] WARNING: at lib/list_debug.c:53 __list_del_entry+0x62/0x71() [107361.892286] Hardware name: LIFEBOOK S7110 [107361.892291] list_del corruption. prev->next should be f3a7105c, but was f2c3c0c4 [107361.892297] Modules linked in: iwl3945(-) iwlcore mac80211 cfg80211 aes_i586 aes_generic i915 fbcon font bitblit softcursor drm_kms_helper drm fb fbdev i2c_algo_bit cfbcopyarea i2c_core cfbimgblt cfbfillrect fuse tun coretemp hwmon snd_hda_codec_realtek snd_hda_intel arc4 ecb snd_hda_codec snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_oss snd_seq_midi_event snd_seq fujitsu_laptop snd_timer snd_seq_device snd rtc_cmos video rtc_core rtc_lib backlight snd_page_alloc [last unloaded: cfg80211] [107361.892386] Pid: 9323, comm: rmmod Tainted: G M 2.6.38-rc6-00020-gd8204a3 #100 [107361.892392] Call Trace: [107361.892404] [<c0135243>] ? warn_slowpath_common+0x6a/0x7f [107361.892412] [<c02981e2>] ? __list_del_entry+0x62/0x71 [107361.892420] [<c01352cb>] ? warn_slowpath_fmt+0x2b/0x2f [107361.892428] [<c02981e2>] ? __list_del_entry+0x62/0x71 [107361.892439] [<c03b206c>] ? unregister_netdevice_queue+0x41/0x6e [107361.892463] [<f83f7b39>] ? ieee80211_remove_interfaces+0x7b/0x9a [mac80211] [107361.892481] [<f83ec19d>] ? ieee80211_unregister_hw+0x48/0xf9 [mac80211] [107361.892496] [<f8264906>] ? iwl3945_pci_remove+0x8d/0x4b9 [iwl3945] [107361.892505] [<c02a3193>] ? pci_device_remove+0x1e/0x3e [107361.892514] [<c0303198>] ? __device_release_driver+0x4a/0x80 [107361.892522] [<c030323a>] ? driver_detach+0x6c/0x8a [107361.892529] [<c03026f2>] ? bus_remove_driver+0x6e/0x8a [107361.892537] [<c0303674>] ? driver_unregister+0x50/0x57 [107361.892545] [<c02a3367>] ? pci_unregister_driver+0x32/0x6b [107361.892559] [<f8264d44>] ? iwl3945_exit+0x12/0x2ce [iwl3945] [107361.892568] [<c015fa19>] ? sys_delete_module+0x183/0x1db [107361.892578] [<c01aa7b4>] ? remove_vma+0x46/0x4c [107361.892586] [<c01ab666>] ? do_munmap+0x21c/0x236 [107361.892596] [<c0102890>] ? sysenter_do_call+0x12/0x26 [107361.892604] ---[ end trace 86d7c6f30bb607c2 ]--- [107362.020197] PM: Removing info for No Bus:wlan0 [107362.052073] PM: Removing info for No Bus:phy0 I am currently on 2.6.38-rc6-00020-gd8204a3 which already contains some list_del fixes but I remember that there were still some of them pending. I can really see at least 5f04d5068 which I do not have. Is it possible that it fixes the above corruption? The config is attached. -- Michal Hocko SUSE Labs SUSE LINUX s.r.o. Lihovarska 1060/12 190 00 Praha 9 Czech Republic -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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