Hello,
Since upgrading to 6.7-rc kernels, I have been getting the following error
message in dmesg
while resuming from suspend:
[ 83.302944] debugfs: Directory 'iwlmvm' with parent 'netdev:wlp2s0' already
present!
[ 83.302963] iwlwifi 0000:02:00.0: Failed to create debugfs directory under
netdev:wlp2s0
I have placed a dump_stack() in a respective debugfs function and obtained a
stack trace (see below).
This may be connected with recent commits by Miri and Johannes:
commit c36235acb34fb ("wifi: iwlwifi: mvm: rework debugfs handling")
commit e9dd25550770a ("wifi: iwlwifi: mvm: add a per-link debugfs")
I am ready to test any patches and to investigate further.
Hardware:
02:00.0 Network controller [0280]: Intel Corporation Wireless 7265 [8086:095a]
(rev 61)
Subsystem: Intel Corporation Dual Band Wireless-AC 7265 [8086:5010]
Old AMD AM2+ motherboard (MSI KA780G) from around 2010.
Greetings,
Mateusz
--------------------------------------------
[ 48.624560] iwlwifi 0000:02:00.0: Applying debug destination EXTERNAL_DRAM
[ 48.702116] iwlwifi 0000:02:00.0: Applying debug destination EXTERNAL_DRAM
[ 48.704281] iwlwifi 0000:02:00.0: FW already configured (0) - re-configuring
[ 48.706863] ACPI: \: failed to evaluate _DSM
bf0212f2-788f-c64d-a5b3-1f738e285ade (0x1001)
[ 48.706872] ACPI: \: failed to evaluate _DSM
bf0212f2-788f-c64d-a5b3-1f738e285ade (0x1001)
[ 48.706876] ACPI: \: failed to evaluate _DSM
bf0212f2-788f-c64d-a5b3-1f738e285ade (0x1001)
[ 48.706879] ACPI: \: failed to evaluate _DSM
bf0212f2-788f-c64d-a5b3-1f738e285ade (0x1001)
[ 48.706882] ACPI: \: failed to evaluate _DSM
bf0212f2-788f-c64d-a5b3-1f738e285ade (0x1001)
[ 48.706884] ACPI: \: failed to evaluate _DSM
bf0212f2-788f-c64d-a5b3-1f738e285ade (0x1001)
[ 48.706887] ACPI: \: failed to evaluate _DSM
bf0212f2-788f-c64d-a5b3-1f738e285ade (0x1001)
[ 48.708274] debugfs: Directory 'iwlmvm' with parent 'netdev:wlp2s0' already
present!
[ 48.708283] CPU: 1 PID: 1331 Comm: NetworkManager Not tainted
6.7.0-rc5unif32-gf3e457d6f075 #430
[ 48.708287] Hardware name: MICRO-STAR INTERNATIONAL CO.,LTD MS-7551/KA780G
(MS-7551), BIOS V16.7 08/05/2010
[ 48.708290] Call Trace:
[ 48.708293] <TASK>
[ 48.708297] dump_stack_lvl+0x37/0x50
[ 48.708305] dump_stack+0x10/0x20
[ 48.708308] start_creating+0xfa/0x1a0
[ 48.708317] debugfs_create_dir+0x1b/0x170
[ 48.708323] iwl_mvm_vif_add_debugfs+0x2b/0x220 [iwlmvm]
[ 48.708388] drv_add_interface+0x240/0x270 [mac80211]
[ 48.708533] ieee80211_do_open+0x4d6/0x710 [mac80211]
[ 48.708633] ? ieee80211_check_concurrent_iface+0x180/0x230 [mac80211]
[ 48.708732] ieee80211_open+0x69/0x90 [mac80211]
[ 48.708832] __dev_open+0xf0/0x1a0
[ 48.708839] __dev_change_flags+0x190/0x200
[ 48.708842] ? skb_queue_tail+0x48/0x60
[ 48.708847] dev_change_flags+0x26/0x70
[ 48.708850] do_setlink+0x867/0x11e0
[ 48.708854] ? rtnl_getlink+0x390/0x420
[ 48.708857] ? __nla_validate_parse+0x5d/0xf90
[ 48.708865] __rtnl_newlink+0x523/0xaa0
[ 48.708869] ? rtnl_newlink+0x30/0x70
[ 48.708873] rtnl_newlink+0x49/0x70
[ 48.708876] rtnetlink_rcv_msg+0x16f/0x440
[ 48.708879] ? _raw_write_unlock_bh+0x1a/0x20
[ 48.708884] ? fib6_walker_unlink+0x49/0x60
[ 48.708889] ? fib6_walk+0x8b/0xa0
[ 48.708893] ? __pfx_rtnetlink_rcv_msg+0x10/0x10
[ 48.708896] netlink_rcv_skb+0x5b/0x110
[ 48.708901] rtnetlink_rcv+0x15/0x20
[ 48.708906] netlink_unicast+0x1b5/0x260
[ 48.708909] netlink_sendmsg+0x250/0x4d0
[ 48.708913] __sock_sendmsg+0xba/0xc0
[ 48.708918] ____sys_sendmsg+0x236/0x340
[ 48.708923] ___sys_sendmsg+0x81/0xc0
[ 48.708927] ? _copy_from_iter+0xb7/0x5d0
[ 48.708932] ? kfree+0x76/0x110
[ 48.708936] ? proc_sys_call_handler+0xb8/0x250
[ 48.708942] ? __fget_light+0xd1/0x130
[ 48.708947] __sys_sendmsg+0x65/0xc0
[ 48.708951] __x64_sys_sendmsg+0x1f/0x30
[ 48.708954] do_syscall_64+0x41/0xf0
[ 48.708959] entry_SYSCALL_64_after_hwframe+0x56/0x5e
[ 48.708965] RIP: 0033:0x7feceb7cb18d
[ 48.708970] Code: 28 89 54 24 1c 48 89 74 24 10 89 7c 24 08 e8 ca ee ff ff 8b
54 24 1c 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 2e 00 00 00 0f 05 <48> 3d 00 f0
ff ff 77 2f 44 89 c7 48 89 44 24 08 e8 fe ee ff ff 48
[ 48.708974] RSP: 002b:00007ffecdd37c60 EFLAGS: 00000293 ORIG_RAX:
000000000000002e
[ 48.708978] RAX: ffffffffffffffda RBX: 00005638fb6c1c00 RCX: 00007feceb7cb18d
[ 48.708981] RDX: 0000000000000000 RSI: 00007ffecdd37cb0 RDI: 000000000000000c
[ 48.708983] RBP: 00007ffecdd37cb0 R08: 0000000000000000 R09: 0000000000000000
[ 48.708985] R10: 0000000000000001 R11: 0000000000000293 R12: 00005638fb6c1c00
[ 48.708987] R13: 00007ffecdd37e68 R14: 00007ffecdd37e5c R15: 0000000000000000
[ 48.708991] </TASK>
[ 48.709032] iwlwifi 0000:02:00.0: Failed to create debugfs directory under
netdev:wlp2s0
[ 52.403523] wlp2s0: authenticate with 50:c7:bf:2c:a9:31 (local
address=b8:9a:2a:5a:b8:56)
[ 52.404492] wlp2s0: send auth to 50:c7:bf:2c:a9:31 (try 1/3)
[ 52.406824] wlp2s0: authenticated
[ 52.408269] wlp2s0: associate with 50:c7:bf:2c:a9:31 (try 1/3)
[ 52.410136] wlp2s0: RX AssocResp from 50:c7:bf:2c:a9:31 (capab=0x11 status=0
aid=3)
[ 52.412299] wlp2s0: associated
