Hello,
I enabled lockdep in 5.11.0+ kernel (I have some patches to the ax200/ax210 driver, but likely nothing
that would affect this).
Is this a known problem?
void __local_bh_enable_ip(unsigned long ip, unsigned int cnt)
{
WARN_ON_ONCE(in_irq());
lockdep_assert_irqs_enabled(); #### this line is 178
#ifdef CONFIG_TRACE_IRQFLAGS
local_irq_disable();
#endif
[ 45.367697] ------------[ cut here ]------------
[ 45.367712] WARNING: CPU: 2 PID: 4053 at kernel/softirq.c:178 __local_bh_enable_ip+0x9d/0xe0
[ 45.367718] Modules linked in: vrf 8021q garp mrp stp llc macvlan pktgen nfsv3 nfs_acl nfs lockd grace nfs_ssc fscache f71882fg sunrpc snd_hda_codec_hdmi
snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_intel snd_intel_dspcfg snd_hda_codec snd_hda_core snd_hwdep mt7915e(O) snd_seq intel_rapl_msr
snd_seq_device mt76(O) coretemp iTCO_wdt iwlmvm intel_pmc_bxt intel_rapl_common ee1004 iTCO_vendor_support mac80211 snd_pcm iwlwifi intel_wmi_thunderbolt
x86_pkg_temp_thermal cfg80211 intel_powerclamp mei_hdcp snd_timer i2c_i801 snd intel_pch_thermal soundcore i2c_smbus mei_wdt acpi_pad sch_fq_codel raid1 dm_raid
raid456 libcrc32c async_raid6_recov async_memcpy async_pq async_xor xor async_tx raid6_pq i915 intel_gtt drm_kms_helper cec rc_core igb i2c_algo_bit xhci_pci
drm ixgbe mdio agpgart hwmon dca i2c_core xhci_pci_renesas wmi video fuse
[ 45.367816] CPU: 2 PID: 4053 Comm: ip Tainted: G O 5.11.0+ #1
[ 45.367818] Hardware name: Default string Default string/SKYBAY, BIOS 5.12 02/19/2019
[ 45.367820] RIP: 0010:__local_bh_enable_ip+0x9d/0xe0
[ 45.367823] Code: 0d 18 a1 ec 7e e8 03 13 11 00 fb 66 0f 1f 44 00 00 65 8b 05 05 a1 ec 7e 85 c0 74 37 5b 5d c3 65 8b 05 b3 af ec 7e 85 c0 75 91 <0f> 0b eb 8d
e8 9a 14 11 00 eb 9c 48 89 ef e8 20 e0 06 00 eb a5 65
[ 45.367825] RSP: 0018:ffffc90001a932e8 EFLAGS: 00010046
[ 45.367828] RAX: 0000000000000000 RBX: 0000000000000201 RCX: 0000000000000000
[ 45.367830] RDX: 0000000000000002 RSI: 0000000000000201 RDI: ffffffffa102e392
[ 45.367831] RBP: ffffffffa102e392 R08: 0000000000000000 R09: 0000000000000001
[ 45.367833] R10: 0000000000000046 R11: 0000000000000000 R12: 0000000000000097
[ 45.367835] R13: ffff8881060fed98 R14: ffff8881020e7e00 R15: 000000000000000c
[ 45.367836] FS: 00007f57b0f19800(0000) GS:ffff88826dc80000(0000) knlGS:0000000000000000
[ 45.367838] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 45.367840] CR2: 00007ffe883f3008 CR3: 0000000126347001 CR4: 00000000003706e0
[ 45.367842] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 45.367843] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 45.367845] Call Trace:
[ 45.367848] iwl_pcie_gen2_enqueue_hcmd+0x532/0x8a0 [iwlwifi]
[ 45.367874] iwl_trans_pcie_gen2_send_hcmd+0x4d/0x3f0 [iwlwifi]
[ 45.367891] iwl_trans_send_cmd+0x6e/0x150 [iwlwifi]
[ 45.367902] iwl_mvm_send_cmd+0x23/0x70 [iwlmvm]
[ 45.367920] iwl_mvm_led_set+0xc1/0xe0 [iwlmvm]
[ 45.367936] led_trigger_event+0x41/0x70
[ 45.367941] ieee80211_do_open+0x349/0x8e0 [mac80211]
[ 45.368000] ? ieee80211_check_concurrent_iface+0x141/0x1c0 [mac80211]
[ 45.368033] __dev_open+0xdf/0x1b0
[ 45.368039] __dev_change_flags+0x1b4/0x230
[ 45.368042] ? __lock_acquire+0x38b/0x2370
[ 45.368050] dev_change_flags+0x1c/0x50
[ 45.368054] do_setlink+0x249/0x10b0
[ 45.368063] ? __nla_validate_parse+0x5f/0xac0
[ 45.368068] ? rcu_read_lock_sched_held+0x3a/0x70
[ 45.368073] ? trace_sched_overutilized_tp+0x9e/0xd0
[ 45.368077] ? update_sd_lb_stats.constprop.0+0x825/0x850
[ 45.368087] __rtnl_newlink+0x5f9/0x970
[ 45.368097] ? lock_acquire+0xcc/0x470
[ 45.368101] ? find_held_lock+0x2b/0x80
[ 45.368105] ? load_balance+0x645/0xe90
[ 45.368110] ? __lock_acquire+0x38b/0x2370
[ 45.368118] ? __lock_acquire+0x38b/0x2370
[ 45.368146] ? rtnl_newlink+0x26/0x60
[ 45.368149] ? rcu_read_lock_sched_held+0x3a/0x70
[ 45.368152] ? trace_kmalloc+0xa6/0xd0
[ 45.368158] rtnl_newlink+0x3f/0x60
[ 45.368161] rtnetlink_rcv_msg+0x16d/0x480
[ 45.368165] ? netlink_deliver_tap+0x8e/0x3c0
[ 45.368172] ? rtnetlink_put_metrics+0x1c0/0x1c0
[ 45.368175] netlink_rcv_skb+0x49/0xf0
[ 45.368183] netlink_unicast+0x186/0x240
[ 45.368188] netlink_sendmsg+0x24a/0x480
[ 45.368197] sock_sendmsg+0x2e/0x40
[ 45.368201] ____sys_sendmsg+0x218/0x230
[ 45.368204] ? import_iovec+0x2d/0x30
[ 45.368208] ? sendmsg_copy_msghdr+0x77/0xa0
[ 45.368212] ? __lock_acquire+0x38b/0x2370
[ 45.368218] ___sys_sendmsg+0x70/0xb0
[ 45.368222] ? sugov_exit+0x86/0xb0
[ 45.368229] ? __lock_acquire+0x38b/0x2370
[ 45.368242] __sys_sendmsg+0x54/0xa0
[ 45.368251] do_syscall_64+0x2d/0x70
[ 45.368257] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 45.368262] RIP: 0033:0x7f57b10cd5e8
[ 45.368264] Code: 89 02 48 c7 c0 ff ff ff ff eb bb 0f 1f 80 00 00 00 00 f3 0f 1e fa 48 8d 05 75 7f 0c 00 8b 00 85 c0 75 17 b8 2e 00 00 00 0f 05 <48> 3d 00 f0
ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 89 54
[ 45.368266] RSP: 002b:00007fffb5285718 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 45.368269] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f57b10cd5e8
[ 45.368271] RDX: 0000000000000000 RSI: 00007fffb5285780 RDI: 0000000000000004
[ 45.368272] RBP: 00000000602add9e R08: 0000000000000001 R09: 0000000000000076
[ 45.368274] R10: fffffffffffffcc8 R11: 0000000000000246 R12: 0000000000000001
[ 45.368275] R13: 00007fffb5285e10 R14: 00007fffb5287bbd R15: 00000000004814c0
[ 45.368285] irq event stamp: 48989
[ 45.368287] hardirqs last enabled at (48987): [<ffffffff8114dcad>] __local_bh_enable_ip+0x7d/0xe0
[ 45.368290] hardirqs last disabled at (48988): [<ffffffff81cca5df>] _raw_read_lock_irqsave+0x8f/0xa0
[ 45.368293] softirqs last enabled at (48986): [<ffffffffa102e392>] iwl_pcie_gen2_enqueue_hcmd+0x532/0x8a0 [iwlwifi]
[ 45.368305] softirqs last disabled at (48989): [<ffffffffa102df50>] iwl_pcie_gen2_enqueue_hcmd+0xf0/0x8a0 [iwlwifi]
[ 45.368315] ---[ end trace fabe536c32904154 ]---
Thanks,
Ben
--
Ben Greear <greearb@xxxxxxxxxxxxxxx>
Candela Technologies Inc http://www.candelatech.com
