The 2.6.37 kernel is not supported in any Ubuntu releases. Does this bug exist on any supported kernels? Maybe give the current mainline kernel a try?
http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.17 ** Changed in: linux (Ubuntu) Importance: Undecided => Low -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1775166 Title: NETDEV WATCHDOG: usb0 (cdc_ether): transmit queue 0 timed out Status in linux package in Ubuntu: Incomplete Bug description: 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1775166/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp