Messages in this thread | | | Date | Tue, 22 Jul 2008 13:39:08 -0500 | From | Larry Finger <> | Subject | Re: Kernel WARNING: at net/core/dev.c:1330 __netif_schedule+0x2c/0x98() |
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Patrick McHardy wrote: > Larry Finger wrote: >> >> ============================================= >> [ INFO: possible recursive locking detected ] >> 2.6.26-Linus-git-05752-g93ded9b #49 > > ^^^^^^^^^^^^^^ dirty? > > This kernel is not using the patches we sent.
No, but they didn't make any difference. I tried with all 3 applied, then backed them out one by one. That was the state when I posted before.
Here are the dumps with all 3 patches applied:
============================================= [ INFO: possible recursive locking detected ] 2.6.26-Linus-05752-g93ded9b-dirty #53 --------------------------------------------- b43/1997 is trying to acquire lock: (_xmit_IEEE80211#2){-...}, at: [<ffffffffa028f322>] ieee80211_scan_completed+0x130/0x2e1 [mac80211]
but task is already holding lock: (_xmit_IEEE80211#2){-...}, at: [<ffffffffa028f322>] ieee80211_scan_completed+0x130/0x2e1 [mac80211]
other info that might help us debug this: 3 locks held by b43/1997: #0: ((name)){--..}, at: [<ffffffff80245185>] run_workqueue+0xa7/0x1f2 #1: (&(&local->scan_work)->work){--..}, at: [<ffffffff80245185>] run_workqueue+0xa7/0x1f2 #2: (_xmit_IEEE80211#2){-...}, at: [<ffffffffa028f322>] ieee80211_scan_completed+0x130/0x2e1 [mac80211]
stack backtrace: Pid: 1997, comm: b43 Not tainted 2.6.26-Linus-05752-g93ded9b-dirty #53
Call Trace: [<ffffffff80255616>] __lock_acquire+0xb7b/0xecc [<ffffffff8040c9a0>] __mutex_unlock_slowpath+0x100/0x10b [<ffffffff802559b8>] lock_acquire+0x51/0x6a [<ffffffffa028f322>] ieee80211_scan_completed+0x130/0x2e1 [mac80211] [<ffffffff8040dc08>] _spin_lock+0x1e/0x27 [<ffffffffa028f322>] ieee80211_scan_completed+0x130/0x2e1 [mac80211] [<ffffffffa028f6ce>] ieee80211_sta_scan_work+0x0/0x1b8 [mac80211] [<ffffffff802451ce>] run_workqueue+0xf0/0x1f2 [<ffffffff802453ab>] worker_thread+0xdb/0xea [<ffffffff80248a5f>] autoremove_wake_function+0x0/0x2e [<ffffffff802452d0>] worker_thread+0x0/0xea [<ffffffff80248731>] kthread+0x47/0x73 [<ffffffff8040d7b1>] trace_hardirqs_on_thunk+0x3a/0x3f [<ffffffff8020ceb9>] child_rip+0xa/0x11 [<ffffffff8020c4ef>] restore_args+0x0/0x30 [<ffffffff802486c5>] kthreadd+0x19a/0x1bf [<ffffffff802486ea>] kthread+0x0/0x73 [<ffffffff8020ceaf>] child_rip+0x0/0x11
------------[ cut here ]------------ WARNING: at net/core/dev.c:1344 __netif_schedule+0x2c/0x98() Modules linked in: af_packet rfkill_input nfs lockd nfs_acl sunrpc cpufreq_conservative cpufreq_userspace cpufreq_powersave powernow_k8 fuse loop dm_mod arc4 ecb crypto_blkcipher b43 firmware_class rfkill mac80211 snd_hda_intel cfg80211 led_class input_polldev k8temp snd_pcm snd_timer battery hwmon sr_mod forcedeth ssb joydev ac button serio_raw cdrom snd soundcore snd_page_alloc sg sd_mod ohci_hcd ehci_hcd usbcore edd fan thermal processor ext3 mbcache jbd pata_amd ahci libata scsi_mod dock Pid: 1997, comm: b43 Not tainted 2.6.26-Linus-05752-g93ded9b-dirty #53
Call Trace: [<ffffffff80235d49>] warn_on_slowpath+0x51/0x8c [<ffffffff8040d7b1>] trace_hardirqs_on_thunk+0x3a/0x3f [<ffffffff803a2413>] __netif_schedule+0x2c/0x98 [<ffffffffa028f44d>] ieee80211_scan_completed+0x25b/0x2e1 [mac80211] [<ffffffffa028f6ce>] ieee80211_sta_scan_work+0x0/0x1b8 [mac80211] [<ffffffff802451ce>] run_workqueue+0xf0/0x1f2 [<ffffffff802453ab>] worker_thread+0xdb/0xea [<ffffffff80248a5f>] autoremove_wake_function+0x0/0x2e [<ffffffff802452d0>] worker_thread+0x0/0xea [<ffffffff80248731>] kthread+0x47/0x73 [<ffffffff8040d7b1>] trace_hardirqs_on_thunk+0x3a/0x3f [<ffffffff8020ceb9>] child_rip+0xa/0x11 [<ffffffff8020c4ef>] restore_args+0x0/0x30 [<ffffffff802486c5>] kthreadd+0x19a/0x1bf [<ffffffff802486ea>] kthread+0x0/0x73 [<ffffffff8020ceaf>] child_rip+0x0/0x11
---[ end trace 88fab857dc2a4242 ]---
Larry
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