<div dir="ltr">Hi,<div>I was facing issue with huawei E392 device. kernel crash is happening after some time. when trying to send <span style="background-color:rgb(255,242,226);color:black;font-family:Helvetica,sans-serif;font-size:9pt">10Mbps traffic. device is loaded with qmi_wwan driver. drivers are backported for kernel version 2.6.32. i searched some blogs it is telling that APCI issue. not able to clearly find the issue. </span></div> <div><span style="background-color:rgb(255,242,226);color:black;font-family:Helvetica,sans-serif;font-size:9pt"><br></span></div><div><p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:Arial,sans-serif;color:rgb(51,51,51)">un 4 12:54:10 RuckusAP user.warn kernel: ------------[ cut here ]------------</span><span lang="EN-US"></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:Arial,sans-serif;color:rgb(51,51,51)">Jun 4 12:54:10 RuckusAP user.warn kernel: WARNING: at /home/jenkins/workspace/SCG_3.0.0.0_ZF795x/linux/kernels/linux-2.6.32.24/net/sched/sch_generic.c:261</span><span lang="EN-US"></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:Arial,sans-serif;color:rgb(51,51,51)">dev_watchdog+0x164/0x260()</span><span lang="EN-US"></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:Arial,sans-serif;color:rgb(51,51,51)">Jun 4 12:54:10 RuckusAP <a href="http://user.info">user.info</a> kernel: NETDEV WATCHDOG: usb0 (qmi_wwan): transmit queue 0 timed out</span><span lang="EN-US"></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:Arial,sans-serif;color:rgb(51,51,51)">Jun 4 12:54:10 RuckusAP user.warn kernel: Modules linked in: qmi_wwan ar_cdc_wdm option usbserial cdc_ether usbnet wispr_http(P) br_dnat(P) ip_gre</span><span lang="EN-US"></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:Arial,sans-serif;color:rgb(51,51,51)">v54smartmedia(P) br_dhcp(P) br_pif(P) br_ci ath_dual wlan_u(P) wlan_acl wlan_xauth wlan_ccmp wlan_wep wlan_tkip wlan_scan_sta wlan_scan_rks ath_spectral(P)</span><span lang="EN-US"></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:Arial,sans-serif;color:rgb(51,51,51)">ath_dfs(P) ath_rate_v54beamflex(P) ath_hal(P) wlan athrs_gmac rks_acl rks_dns(P) rudb(P) rks_ioctl</span><span lang="EN-US"></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:Arial,sans-serif;color:rgb(51,51,51)">Jun 4 12:54:10 RuckusAP user.warn kernel: Call Trace:</span><span lang="EN-US"></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:Arial,sans-serif;color:rgb(51,51,51)">Jun 4 12:54:10 RuckusAP user.warn kernel: [<80088a7c>] dump_stack+0x8/0x34</span><span lang="EN-US"></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:Arial,sans-serif;color:rgb(51,51,51)">Jun 4 12:54:10 RuckusAP user.warn kernel: [<800a9bf4>] warn_slowpath_common+0x70/0xb0</span><span lang="EN-US"></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:Arial,sans-serif;color:rgb(51,51,51)">Jun 4 12:54:10 RuckusAP user.warn kernel: [<800a9c74>] warn_slowpath_fmt+0x24/0x30</span><span lang="EN-US"></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:Arial,sans-serif;color:rgb(51,51,51)">Jun 4 12:54:10 RuckusAP user.warn kernel: [<802649dc>] dev_watchdog+0x164/0x260</span><span lang="EN-US"></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:Arial,sans-serif;color:rgb(51,51,51)">Jun 4 12:54:10 RuckusAP user.warn kernel: [<800b43b8>] run_timer_softirq+0x14c/0x1d8</span><span lang="EN-US"></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:Arial,sans-serif;color:rgb(51,51,51)">Jun 4 12:54:10 RuckusAP user.warn kernel: [<800afd2c>] __do_softirq+0xb4/0x14c</span><span lang="EN-US"></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:Arial,sans-serif;color:rgb(51,51,51)">Jun 4 12:54:10 RuckusAP user.warn kernel: [<800afe0c>] do_softirq+0x48/0x6c</span><span lang="EN-US"></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:Arial,sans-serif;color:rgb(51,51,51)">Jun 4 12:54:10 RuckusAP user.warn kernel: [<8008050c>] ret_from_irq+0x0/0x4</span><span lang="EN-US"></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:Arial,sans-serif;color:rgb(51,51,51)">Jun 4 12:54:10 RuckusAP user.warn kernel: [<8008ddcc>] r4k_wait_irqoff+0x20/0x24</span><span lang="EN-US"></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:Arial,sans-serif;color:rgb(51,51,51)">Jun 4 12:54:10 RuckusAP user.warn kernel: [<8008e800>] cpu_idle+0x24/0x44</span><span lang="EN-US"></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:Arial,sans-serif;color:rgb(51,51,51)">Jun 4 12:54:10 RuckusAP user.warn kernel: [<803a5a5c>] start_kernel+0x34c/0x368</span><span lang="EN-US"></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:Arial,sans-serif;color:rgb(51,51,51)">Jun 4 12:54:10 RuckusAP user.warn kernel: ---[ end trace 5c960849b18c9e51 ]---</span><span lang="EN-US"></span></p> <p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:Arial,sans-serif;color:rgb(51,51,51)">Jun 4 12:54:19 RuckusAP <a href="http://daemon.info">daemon.info</a> hostapd: wlan0: STA 1c:ab:a7:40:e9:ef IEEE 802.11: associated</span><span lang="EN-US"></span></p></div></div>