Public bug reported:
Hello Team
We are using linux kernel 2.6.37 due to Hardware dependency. while
transmitting data (.json, .mp4, .jpeg) using curl we are facing
following following issue randomly in a week:
Mar 19 22:01:55 RO402355_V4 user.warn kernel: ------------[ cut here
]------------
Mar 19 22:01:55 RO402355_V4 user.warn kernel: WARNING: at
net/sched/sch_generic.c:258 dev_watchdog+0x148/0x230()
Mar 19 22:01:55 RO402355_V4 user.info kernel: NETDEV WATCHDOG: usb0
(cdc_ether): transmit queue 0 timed out
Mar 19 22:01:55 RO402355_V4 user.warn kernel: Modules linked in: ti81xxhdmi
vpss osa_kermod syslink temp_sens_udu mxc_mma adxl37x_i2c adxl37x
Mar 19 22:01:55 RO402355_V4 user.warn kernel: Backtrace:
Mar 19 22:01:55 RO402355_V4 user.warn kernel: [<c0051fc4>]
(dump_backtrace+0x0/0x110) from [<c04f9c00>] (dump_stack+0x18/0x1c)
Mar 19 22:01:55 RO402355_V4 user.warn kernel: r6:c0667f1f r5:00000102
r4:ea07fe88 r3:60000113
Mar 19 22:01:55 RO402355_V4 user.warn kernel: [<c04f9be8>]
(dump_stack+0x0/0x1c) from [<c0078620>] (warn_slowpath_common+0x54/0x6c)
Mar 19 22:01:55 RO402355_V4 user.warn kernel: [<c00785cc>]
(warn_slowpath_common+0x0/0x6c) from [<c00786dc>] (warn_slowpath_fmt+0x38/0x40)
Mar 19 22:01:55 RO402355_V4 user.warn kernel: r8:c0441f5c r7:00000100
r6:00000000 r5:c0732778 r4:eaa64000
Mar 19 22:01:55 RO402355_V4 user.warn kernel: r3:00000009
Mar 19 22:01:55 RO402355_V4 user.warn kernel: [<c00786a4>]
(warn_slowpath_fmt+0x0/0x40) from [<c04420a4>] (dev_watchdog+0x148/0x230)
Mar 19 22:01:55 RO402355_V4 user.warn kernel: r3:eaa64000 r2:c0667f37
Mar 19 22:01:55 RO402355_V4 user.warn kernel: [<c0441f5c>]
(dev_watchdog+0x0/0x230) from [<c0082948>] (run_timer_softirq+0x130/0x1c8)
Mar 19 22:01:55 RO402355_V4 user.warn kernel: r6:00000100 r5:ea07e000
r4:c0714a40
Mar 19 22:01:55 RO402355_V4 user.warn kernel: [<c0082818>]
(run_timer_softirq+0x0/0x1c8) from [<c007d4e0>] (__do_softirq+0x84/0x114)
Mar 19 22:01:55 RO402355_V4 user.warn kernel: [<c007d45c>]
(__do_softirq+0x0/0x114) from [<c007d8d0>] (irq_exit+0x48/0x98)
Mar 19 22:01:55 RO402355_V4 user.warn kernel: [<c007d888>] (irq_exit+0x0/0x98)
from [<c004407c>] (asm_do_IRQ+0x7c/0x9c)
Mar 19 22:01:55 RO402355_V4 user.warn kernel: [<c0044000>]
(asm_do_IRQ+0x0/0x9c) from [<c04fbe7c>] (__irq_usr+0x3c/0xa0)
Mar 19 22:01:55 RO402355_V4 user.warn kernel: Exception stack(0xea07ffb0 to
0xea07fff8)
Mar 19 22:01:55 RO402355_V4 user.warn kernel: ffa0:
41bd92d9 41bd9307 00000070 41bd9306
Mar 19 22:01:55 RO402355_V4 user.warn kernel: ffc0: 41bd9306 00000020 00000009
0000000a 0000005c 41bd92d5 00000000 000000ff
Mar 19 22:01:55 RO402355_V4 user.warn kernel: ffe0: 00000070 41bd8e78 401da59c
401da030 20000010 ffffffff
Mar 19 22:01:55 RO402355_V4 user.warn kernel: r5:fa200000 r4:ffffffff
Mar 19 22:01:55 RO402355_V4 user.warn kernel: ---[ end trace c6866a34f1f582f4
]---
We have tried to find out root cause but still not getting cause and solution.
Let me know if any..
Thank you
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1775166
Title:
NETDEV WATCHDOG: usb0 (cdc_ether): transmit queue 0 timed out
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