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** Changed in: linux (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1638025
Title:
MT7601U module crashes with 4.4.0.45 Kernel
Status in linux package in Ubuntu:
Confirmed
Bug description:
There are frequent crash seen with MT7601U module with latest kernel
4.4.0.45.
[ 135.900428] ------------[ cut here ]------------
[ 135.900434] WARNING: CPU: 1 PID: 13 at
/build/linux-kOWph6/linux-4.4.0/drivers/net/wireless/mediatek/mt7601u/dma.c:291
mt7601u_dma_enqueue_tx+0x26b/0x2a0 [mt7601u]()
[ 135.900435] Modules linked in:
[ 135.900436] systemd-journald[256]: /dev/kmsg buffer overrun, some messages
lost.
[ 135.900437] ip6table_filter
[ 135.900439] ip6_tables iptable_filter
[ 135.900440] systemd-journald[256]: /dev/kmsg buffer overrun, some messages
lost.
[ 135.900441] ip_tables x_tables drbg ansi_cprng ctr ccm arc4 mt7601u
mac80211 cfg80211 intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp
nls_iso8859_1 kvm_intel kvm rndis_host cdc_ether irqbypass usbnet
snd_hda_codec_hdmi snd_hda_codec_realtek crct10dif_pclmul crc32_pclmul
snd_hda_codec_generic snd_hda_intel aesni_intel aes_x86_64 joydev snd_hda_codec
input_leds lrw snd_hda_core gf128mul snd_hwdep glue_helper snd_pcm snd_seq_midi
snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device ablk_helper snd_timer snd
serio_raw soundcore cryptd mei_me mei shpchp lpc_ich mac_hid tpm_infineon
8250_fintek parport_pc ppdev lp parport autofs4 raid10 raid456
async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq
libcrc32c raid1 raid0 multipath linear hid_generic usbhid hid i915 i2c_algo_bit
[ 135.900472] drm_kms_helper syscopyarea psmouse sysfillrect sysimgblt
fb_sys_fops drm ahci r8169 libahci mii video fjes
[ 135.900478] CPU: 1 PID: 13 Comm: ksoftirqd/1 Tainted: G W
4.4.0-45-generic #66-Ubuntu
[ 135.900479] Hardware name: Gigabyte Technology Co., Ltd.
H81M-S2PH/H81M-S2PH, BIOS FC 11/10/2014
[ 135.900480] 0000000000000086 00000000489d46bf ffff880215b3f970
ffffffff813f1fe3
[ 135.900483] 0000000000000000 ffffffffc04ec118 ffff880215b3f9a8
ffffffff81081212
[ 135.900485] ffff880035716858 ffff880210e32898 0000000000000005
ffff8800d0dc8d00
[ 135.900487] Call Trace:
[ 135.900490] [<ffffffff813f1fe3>] dump_stack+0x63/0x90
[ 135.900492] [<ffffffff81081212>] warn_slowpath_common+0x82/0xc0
[ 135.900494] [<ffffffff8108135a>] warn_slowpath_null+0x1a/0x20
[ 135.900498] [<ffffffffc04e3b1b>] mt7601u_dma_enqueue_tx+0x26b/0x2a0
[mt7601u]
[ 135.900511] [<ffffffffc06d5b84>] ? minstrel_ht_get_rate+0x34/0x4c0
[mac80211]
[ 135.900516] [<ffffffffc04e8b33>] mt7601u_tx+0x223/0x3c0 [mt7601u]
[ 135.900528] [<ffffffffc0676164>] ?
ieee80211_crypto_ccmp_encrypt+0x34/0x250 [mac80211]
[ 135.900540] [<ffffffffc0696180>] ieee80211_tx_frags+0x170/0x3b0 [mac80211]
[ 135.900552] [<ffffffffc0696b91>] __ieee80211_tx+0x81/0x180 [mac80211]
[ 135.900554] systemd-journald[256]: /dev/kmsg buffer overrun, some messages
lost.
[ 135.900569] [<ffffffffc069a23f>] ieee80211_tx+0xdf/0x110 [mac80211]
[ 135.900582] [<ffffffffc069a30b>] ieee80211_xmit+0x9b/0xf0 [mac80211]
[ 135.900594] [<ffffffffc069ae6b>] __ieee80211_subif_start_xmit+0x55b/0x790
[mac80211]
[ 135.900598] [<ffffffff81710f89>] ? csum_partial_ext+0x9/0x10
[ 135.900604] [<ffffffff81713295>] ? __skb_checksum+0x65/0x2d0
[ 135.900608] [<ffffffff810b36bf>] ? select_idle_sibling+0xef/0x120
[ 135.900613] [<ffffffff81710d09>] ? kfree_skbmem+0x59/0x60
[ 135.900617] [<ffffffff81711f04>] ? consume_skb+0x34/0x90
[ 135.900622] [<ffffffff81815884>] ? packet_rcv+0x44/0x440
[ 135.900634] [<ffffffffc069b0b0>] ieee80211_subif_start_xmit+0x10/0x20
[mac80211]
[ 135.900638] [<ffffffff817287a9>] dev_hard_start_xmit+0x249/0x3d0
[ 135.900642] [<ffffffff8174d35c>] sch_direct_xmit+0xfc/0x220
[ 135.900647] [<ffffffff8174d583>] __qdisc_run+0x103/0x1a0
[ 135.900651] [<ffffffff81724ed0>] net_tx_action+0xe0/0x240
[ 135.900652] systemd-journald[256]: /dev/kmsg buffer overrun, some messages
lost.
[ 135.900660] [<ffffffff81085c71>] __do_softirq+0x101/0x290
[ 135.900664] [<ffffffff81085e28>] run_ksoftirqd+0x28/0x50
[ 135.900669] [<ffffffff810a3cd5>] smpboot_thread_fn+0x105/0x160
[ 135.900671] [<ffffffff810a3bd0>] ? sort_range+0x30/0x30
[ 135.900673] [<ffffffff810a0928>] kthread+0xd8/0xf0
[ 135.900674] [<ffffffff810a0850>] ? kthread_create_on_node+0x1e0/0x1e0
[ 135.900677] [<ffffffff81831c4f>] ret_from_fork+0x3f/0x70
[ 135.900679] [<ffffffff810a0850>] ? kthread_create_on_node+0x1e0/0x1e0
[ 135.900680] ---[ end trace 492e0702110b49d9 ]---
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-45-generic 4.4.0-45.66
ProcVersionSignature: Ubuntu 4.4.0-45.66-generic 4.4.21
Uname: Linux 4.4.0-45-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: rohit 2164 F.... pulseaudio
/dev/snd/controlC0: rohit 2164 F.... pulseaudio
CurrentDesktop: Unity
Date: Mon Oct 31 20:09:30 2016
HibernationDevice: RESUME=UUID=11a54c6b-4b7c-4d4e-b084-6d6916d01e1a
InstallationDate: Installed on 2015-08-28 (429 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
MachineType: Gigabyte Technology Co., Ltd. H81M-S2PH
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-45-generic
root=UUID=fdd19df7-3b7b-479a-8caa-d9e7f62e0641 ro quiet splash nomdmonddf
nomdmonisw vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-4.4.0-45-generic N/A
linux-backports-modules-4.4.0-45-generic N/A
linux-firmware 1.157.4
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/10/2014
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: FC
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: H81M-S2PH
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvrFC:bd11/10/2014:svnGigabyteTechnologyCo.,Ltd.:pnH81M-S2PH:pvrTobefilledbyO.E.M.:rvnGigabyteTechnologyCo.,Ltd.:rnH81M-S2PH:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: H81M-S2PH
dmi.product.version: To be filled by O.E.M.
dmi.sys.vendor: Gigabyte Technology Co., Ltd.
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