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Message-ID: <CAMdYzYr_w8Qna4gvuNeNtGd2yZt0Zqu+5fHPwWQ1VgbfU8O0qQ@mail.gmail.com>
Date: Sat, 18 May 2019 08:06:08 -0400
From: Peter Geis <pgwipeout@...il.com>
To: Serge Semin <fancer.lancer@...il.com>
Cc: Heiner Kallweit <hkallweit1@...il.com>,
Andrew Lunn <andrew@...n.ch>,
Florian Fainelli <f.fainelli@...il.com>,
"David S. Miller" <davem@...emloft.net>,
Serge Semin <Sergey.Semin@...latforms.ru>,
netdev@...r.kernel.org,
"linux-rockchip@...ts.infradead.org"
<linux-rockchip@...ts.infradead.org>
Subject: Re: [Regression] "net: phy: realtek: Add rtl8211e rx/tx delays
config" breaks rk3328-roc-cc networking
On Tue, May 14, 2019 at 12:20 PM Serge Semin <fancer.lancer@...il.com> wrote:
>
> Hello Peter
>
> On Tue, May 14, 2019 at 07:53:21AM -0400, Peter Geis wrote:
> > On Sun, May 12, 2019 at 3:34 AM Heiner Kallweit <hkallweit1@...il.com> wrote:
> > >
> > > On 12.05.2019 04:50, Peter Geis wrote:
> > > > On 5/11/2019 10:37 PM, Andrew Lunn wrote:
> > > >> On Sat, May 11, 2019 at 07:17:08PM -0400, Peter Geis wrote:
> > > >>> Good Evening,
> > > >>>
> > > >>> Commit f81dadbcf7fd067baf184b63c179fc392bdb226e "net: phy: realtek: Add
> > > >>> rtl8211e rx/tx delays config" breaks networking completely on the
> > > >>> rk3328-roc-cc.
> > > >>> Reverting the offending commit solves the problem.
> > > >>
> > > >> Hi Peter
> > > >>
> > > >> The fix should be in net, and will soon make its way upwards.
> > > >>
> > > >> Andrew
> > > >>
> > > >
> > > >
> > > > Good Evening,
> > > >
> > > > Thanks, is there a link to the patch so I may test it?
> > > >
> > > https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=daf3ddbe11a2ff74c95bc814df8e5fe3201b4cb5
> > >
> > > > Peter
> > > >
> > > Heiner
> >
> > This patch does correct the error message on boot, however networking
> > is still completely broken.
> > The current error is as follows:
> >
> > [ 121.829375] kworker/3:1 D 0 67 2 0x00000028
> > [ 121.829398] Workqueue: events linkwatch_event
> > [ 121.829403] Call trace:
> > [ 121.829412] __switch_to+0xb8/0x1a8
> > [ 121.829420] __schedule+0x220/0x560
> > [ 121.829423] schedule+0x38/0xd8
> > [ 121.829429] schedule_preempt_disabled+0x20/0x38
> > [ 121.829435] __mutex_lock.isra.1+0x1c4/0x500
> > [ 121.829438] __mutex_lock_slowpath+0x10/0x18
> > [ 121.829443] mutex_lock+0x2c/0x38
> > [ 121.829449] rtnl_lock+0x14/0x20
> > [ 121.829453] linkwatch_event+0xc/0x38
> > [ 121.829461] process_one_work+0x1e0/0x320
> > [ 121.829466] worker_thread+0x40/0x428
> > [ 121.829473] kthread+0x120/0x128
> > [ 121.829476] ret_from_fork+0x10/0x18
> > [ 121.829533] INFO: task NetworkManager:1833 blocked for more than 61 seconds.
> > [ 121.830160] Not tainted
> > 5.1.0-next-20190510test-00009-g3ed182aaa670-dirty #55
> > [ 121.830831] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
> > disables this message.
> > [ 121.831589] NetworkManager D 0 1833 1 0x00000028
> > [ 121.831601] Call trace:
> > [ 121.831614] __switch_to+0xb8/0x1a8
> > [ 121.831623] __schedule+0x220/0x560
> > [ 121.831631] schedule+0x38/0xd8
> > [ 121.831639] schedule_preempt_disabled+0x20/0x38
> > [ 121.831647] __mutex_lock.isra.1+0x1c4/0x500
> > [ 121.831666] __mutex_lock_slowpath+0x10/0x18
> > [ 121.831671] mutex_lock+0x2c/0x38
> > [ 121.831687] mdiobus_write+0x40/0x80
> > [ 121.831698] rtl8211e_config_init+0x60/0xa0 [realtek]
> > [ 121.831706] phy_init_hw+0x54/0x70
> > [ 121.831714] phy_attach_direct+0xd4/0x250
> > [ 121.831720] phy_connect_direct+0x20/0x70
> > [ 121.831728] phy_connect+0x54/0xa0
> > [ 121.831741] stmmac_init_phy+0x17c/0x200
> > [ 121.831748] stmmac_open+0x124/0xac0
> > [ 121.831759] __dev_open+0xd8/0x158
> > [ 121.831762] __dev_change_flags+0x164/0x1c8
> > [ 121.831766] dev_change_flags+0x20/0x60
> > [ 121.831774] do_setlink+0x288/0xba8
> > [ 121.831778] __rtnl_newlink+0x5cc/0x6e8
> > [ 121.831783] rtnl_newlink+0x48/0x70
> > [ 121.831786] rtnetlink_rcv_msg+0x120/0x368
> > [ 121.831807] netlink_rcv_skb+0x58/0x118
> > [ 121.831811] rtnetlink_rcv+0x14/0x20
> > [ 121.831816] netlink_unicast+0x180/0x1f8
> > [ 121.831822] netlink_sendmsg+0x190/0x330
> > [ 121.831837] sock_sendmsg+0x3c/0x58
> > [ 121.831844] ___sys_sendmsg+0x268/0x2a0
> > [ 121.831849] __sys_sendmsg+0x68/0xb8
> > [ 121.831855] __arm64_sys_sendmsg+0x20/0x28
> > [ 121.831864] el0_svc_common.constprop.0+0x7c/0xe8
> > [ 121.831870] el0_svc_handler+0x28/0x78
> > [ 121.831875] el0_svc+0x8/0xc
>
> Thanks for sending the report. The fix has already been found and applied
> to the net-next:
> https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git/commit/?id=dffe7d2e04670ff98e4dacf258df30446e2e80d4
>
> -Sergey
Thanks, this fixes networking, but there are now complaints about
leaking references.
[ 59.504597] ------------[ cut here ]------------
[ 59.504613] remove_proc_entry: removing non-empty directory
'net/rpc', leaking at least 'use-gss-proxy'
[ 59.504677] WARNING: CPU: 3 PID: 7 at fs/proc/generic.c:683
remove_proc_entry+0x178/0x188
[ 59.504682] Modules linked in: fuse bridge stp llc
snd_soc_hdmi_codec dw_hdmi_i2s_audio aes_ce_blk crypto_simd
aes_ce_cipher crct10dif_ce ghash_ce aes_arm64 sha2_ce sha256_arm64
sha1_ce rockchipdrm pwm_fan dw_hdmi lima snd_soc_simple_card
snd_soc_simple_card_utils drm_kms_helper gpu_sched drm
snd_soc_rockchip_i2s drm_panel_orientation_quirks snd_soc_rockchip_pcm
squashfs sch_fq_codel ip_tables x_tables ipv6 crc_ccitt btrfs xor
xor_neon zstd_compress raid6_pq libcrc32c zstd_decompress rtc_rk808
realtek
[ 59.504768] CPU: 3 PID: 7 Comm: kworker/u8:0 Not tainted
5.1.0-next-20190514test-13354-gfd862c6fd105 #57
[ 59.504770] Hardware name: Firefly roc-rk3328-cc (DT)
[ 59.504790] Workqueue: netns cleanup_net
[ 59.504794] pstate: 40400005 (nZcv daif +PAN -UAO)
[ 59.504801] pc : remove_proc_entry+0x178/0x188
[ 59.504805] lr : remove_proc_entry+0x178/0x188
[ 59.504807] sp : ffff00001120fc80
[ 59.504809] x29: ffff00001120fc80 x28: 0000000000000000
[ 59.504814] x27: ffff800003284b38 x26: ffff000010c2ba00
[ 59.504818] x25: 0000000000000000 x24: ffff80000ababc50
[ 59.504822] x23: ffff8000036e5640 x22: ffff8000036e56eb
[ 59.504825] x21: ffff8000036e8feb x20: ffff000010f03688
[ 59.504829] x19: ffff8000036e8f40 x18: ffff000010f17000
[ 59.504833] x17: 0000000000000001 x16: 0000000000000007
[ 59.504836] x15: 00000000fffffff0 x14: 696b61656c202c27
[ 59.504840] x13: 6370722f74656e27 x12: 2079726f74636572
[ 59.504845] x11: 6964207974706d65 x10: 2d6e6f6e20676e69
[ 59.504849] x9 : 0000000000000000 x8 : 0000000000000004
[ 59.504853] x7 : 00000000000001c0 x6 : ffff000010ff5000
[ 59.504856] x5 : 0000000000000001 x4 : ffff8000fead22a8
[ 59.504860] x3 : ffff8000fead22a8 x2 : 0000000000000007
[ 59.504864] x1 : e5b404e852ff9000 x0 : 0000000000000000
[ 59.504868] Call trace:
[ 59.504874] remove_proc_entry+0x178/0x188
[ 59.504884] rpc_proc_exit+0x18/0x20
[ 59.504906] sunrpc_exit_net+0x48/0x70
[ 59.504915] ops_exit_list.isra.0+0x44/0x78
[ 59.504918] cleanup_net+0x1a8/0x2c0
[ 59.504934] process_one_work+0x1e0/0x320
[ 59.504939] worker_thread+0x40/0x428
[ 59.504948] kthread+0x120/0x128
[ 59.504955] ret_from_fork+0x10/0x18
[ 59.504962] ---[ end trace 66885a1575002df1 ]---
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