Fw: [Bug 217772] SoC development environment Linux LAN disconnection

Fw: [Bug 217772] SoC development environment Linux LAN disconnection

[Stephen Hemminger]

This bug report doesn't have a lot of info.
But in the dmesg is:

WARNING: CPU: 0 PID: 0 at /home/kaihatsu/linux_home/thread_\\\\\\\\\\/firm/kernel/linux-4.4-*****/net/sched/sch_generic.c:303 dev_watchdog+0x230/0x23c()
NETDEV WATCHDOG: eth0 (stmmaceth): transmit queue 0 timed out
Modules linked in: qgpio(O) qm3(O) qmem(O)
CPU: 0 PID: 0 Comm: swapper Tainted: G        W  O    4.4.0 #1
Hardware name: ********* (Flattened Device Tree)
[<8002a2e0>] (unwind_backtrace) from [<800289a4>] (show_stack+0x10/0x14)
[<800289a4>] (show_stack) from [<800357b0>] (warn_slowpath_common+0x84/0xb0)
[<800357b0>] (warn_slowpath_common) from [<8003580c>] (warn_slowpath_fmt+0x30/0x40)
[<8003580c>] (warn_slowpath_fmt) from [<8048bd20>] (dev_watchdog+0x230/0x23c)
[<8048bd20>] (dev_watchdog) from [<80075028>] (call_timer_fn+0x30/0x110)
[<80075028>] (call_timer_fn) from [<80075370>] (run_timer_softirq+0x140/0x264)
[<80075370>] (run_timer_softirq) from [<8003851c>] (__do_softirq+0xf4/0x2cc)
[<8003851c>] (__do_softirq) from [<8006b144>] (__handle_domain_irq+0x58/0xa8)
[<8006b144>] (__handle_domain_irq) from [<8000942c>] (gic_handle_irq+0x38/0x64)
[<8000942c>] (gic_handle_irq) from [<8056a280>] (__irq_svc+0x40/0x54)
Exception stack(0x807d7f50 to 0x807d7f98)
7f40:                                     807e3a78 0000067f 807dd6f8 80031b20
7f60: 80849050 807d6000 807d810c 808413c0 80840643 80840643 80849000 807c5a28
7f80: 00a00000 807d7fa0 80025c4c 80025c50 60010013 ffffffff
[<8056a280>] (__irq_svc) from [<80025c50>] (arch_cpu_idle+0x38/0x3c)
[<80025c50>] (arch_cpu_idle) from [<8005e5d4>] (cpu_startup_entry+0x110/0x14c)
[<8005e5d4>] (cpu_startup_entry) from [<80789c9c>] (start_kernel+0x3d0/0x3dc)
---[ end trace cb88537fdc8fa202 ]---

Begin forwarded message:

Date: Wed, 09 Aug 2023 12:29:07 +0000
From: bugzilla-daemon@kernel.org
To: stephen@networkplumber.org
Subject: [Bug 217772] SoC development environment Linux LAN disconnection


https://bugzilla.kernel.org/show_bug.cgi?id=217772

Ryosuke Motoyoshi (motoyoshi@phoenix-group.co.jp) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Kernel Version|                            |Linux 4.4

--- Comment #2 from Ryosuke Motoyoshi (motoyoshi@phoenix-group.co.jp) ---
(In reply to Stephen Hemminger from comment #1)


> Need to know both the kernel config, and which network device is being used.  

Our designer
He said that he uses the Linux kernel as it is, so he doesn't know how to
answer.

> Did you check the kernel log (dmesg).  

Attach separately.

> Check with LWN articles or kernel newbies
> https://kernelnewbies.org/Linux_4.19  

Let me check them in parallel.

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