On 2018-04-25 10:39, Pintu Kumar wrote: > Hi, > > I got kernel oops when using rtnet loopback with simple udp socket on > Xenomai 3.0 > > STEPS: > ========= > # lspci -knn | grep -i ethernet -A 3 > 00:1f.6 Ethernet controller [0200]: Intel Corporation Ethernet > Connection (2) I219-V [8086:15b8] (rev 31) > Subsystem: ASUSTeK Computer Inc. Ethernet Connection (2) > I219-V [1043:8672] > Kernel driver in use: e1000e > Kernel modules: e1000e > > ------------- > sudo ifconfig lo down > sudo modprobe rtnet > sudo modprobe rtipv4 > sudo modprobe rtudp > sudo modprobe rtpacket > sudo modprobe rt_loopback > sudo /usr/xenomai/sbin/rtifconfig rtlo up 127.0.0.1 > > # /usr/xenomai/sbin/rtifconfig > rtlo Medium: Local Loopback > IP address: 127.0.0.1 > UP LOOPBACK RUNNING MTU: 1500 > ------------- > Note: I am not installing e1000e driver, as I am checking on loopback > interface now. > > # ./rtnet-udp-server 5600 & > # ./rtnet-udp-client 5800 127.0.0.1 5600 > > server => establish the UDP connection and wait for some message from client. > client => just send the "hello" message to the server > > Note: the same program works when build with normal Linux. > > INFO: > ============= > # xeno-config --info > Xenomai version: Xenomai/cobalt v3.0.6 -- #5956064 (2018-03-20 12:13:33 +0100) > Linux 4.9.51-x86-64-pintu-xeno3-rtdm #2 SMP Wed Apr 25 16:30:53 JST > 2018 x86_64 x86_64 x86_64 GNU/Linux > Kernel parameters: initrd=0:\initrd.img-4.9.51-x86-64-pintu-xeno3-rtdm > root=/dev/disk/by-partlabel/system ro ip=off > I-pipe release #4 detected > Cobalt core 3.0.6 detected > Compiler: gcc version 5.4.0 > Build args: > > ============= > > > --------------------- > [ 377.304363] > *** RTnet for Xenomai v3.0.6 *** > > [ 377.304366] RTnet: initialising real-time networking > [ 377.319430] Intel(R) PRO/1000 Network Driver - version 7.1.9 > [ 377.319433] Copyright (c) 1999-2006 Intel Corporation. > [ 379.632211] initializing loopback... > [ 379.632218] RTnet: registered rtlo > [ 474.312740] BUG: unable to handle kernel paging request at 00007ffcb25562e8 > [ 474.312744] IP: [<ffffffffc0621465>] rt_udp_ioctl+0x45/0x5f [rtudp] > [ 474.312748] PGD 80bccc067 > [ 474.312749] PUD 80f039067 > [ 474.312750] PMD 80c364067 > [ 474.312751] PTE 8000000806e09867 > > [ 474.312754] Oops: 0001 [#1] SMP > [ 474.312755] Modules linked in: rt_loopback rtpacket rtudp rt_e1000 > rtipv4 rtnet arc4 8021q garp mrp stp llc rfcomm bnep > snd_hda_codec_hdmi nls_iso8859_1 ath10k_pci ath10k_core ath mac80211 > intel_rapl eeepc_wmi asus_wmi x86_pkg_temp_thermal sparse_keymap > intel_powerclamp mxm_wmi coretemp kvm irqbypass crct10dif_pclmul > cfg80211 crc32_pclmul ghash_clmulni_intel aesni_intel > snd_hda_codec_realtek aes_x86_64 snd_hda_codec_generic lrw gf128mul > glue_helper snd_hda_intel ablk_helper snd_hda_codec cryptd btusb > snd_hda_core btrtl snd_hwdep mei_me mei shpchp serio_raw hci_uart > btbcm btqca btintel bluetooth wmi acpi_als kfifo_buf industrialio > intel_lpss_acpi intel_lpss mac_hid acpi_pad autofs4 e1000e psmouse ptp > pps_core ahci libahci video i2c_hid pinctrl_sunrisepoint pinctrl_intel > hid fjes > [ 474.312806] CPU: 0 PID: 3232 Comm: rtnet-server Not tainted > 4.9.51-x86-64-pintu-xeno3-rtdm #2 > [ 474.312808] Hardware name: SkyLake > [ 474.312809] I-pipe domain: Linux > [ 474.312810] task: ffff8eaa4d090f00 task.stack: ffffa4cc080d4000 > [ 474.312811] RIP: 0010:[<ffffffffc0621465>] [<ffffffffc0621465>] > rt_udp_ioctl+0x45/0x5f [rtudp] > [ 474.312814] RSP: 0018:ffffa4cc080d7e20 EFLAGS: 00010246 > [ 474.312815] RAX: 00007ffcb25562e0 RBX: ffff8eaa4cf52800 RCX: > ffff8eaa4cf52840 > [ 474.312816] RDX: 0000000000000000 RSI: 0000000040100022 RDI: > ffff8eaa4cf52800 > [ 474.312817] RBP: ffffa4cc080d7e20 R08: 00007fa113b57d78 R09: > 0000000000000105 > [ 474.312819] R10: 000000010000aa3a R11: ffff8eaa50e39600 R12: > 0000000000000003 > [ 474.312820] R13: ffff8eaa4d090f00 R14: 000000004cf52800 R15: > ffffa4cc03856040 > [ 474.312821] FS: 00007fa1145b3740(0000) GS:ffff8eaa56200000(0000) > knlGS:0000000000000000 > [ 474.312823] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b > [ 474.312824] CR2: 00007ffcb25562e8 CR3: 000000080f0a9000 CR4: > 00000000003406f0 > [ 474.312825] DR0: 0000000000000000 DR1: 0000000000000000 DR2: > 0000000000000000 > [ 474.312826] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: > 0000000000000400 > [ 474.312827] Stack: > [ 474.312828] ffffa4cc080d7eb0 ffffffffa419a0e7 00007ffcb25562e0 > 4010002200000003 > [ 474.312831] ffff8eaa00000010 ffffa4cc080d7ec0 ffffa4cc080d7e58 > ffff8eaa4d090f00 > [ 474.312834] ffffffffa419e590 00007ffcb25562e0 ffffa4cc080d7e90 > ffffffffa409a6f1 > [ 474.312836] Call Trace: > [ 474.312840] [<ffffffffa419a0e7>] rtdm_fd_ioctl+0xe7/0x280 > [ 474.312842] [<ffffffffa419e590>] ? CoBaLt_fcntl+0x20/0x20 > [ 474.312844] [<ffffffffa409a6f1>] ? __ipipe_migrate_head+0x51/0xb0 > [ 474.312846] [<ffffffffa419e590>] ? CoBaLt_fcntl+0x20/0x20 > [ 474.312848] [<ffffffffa419e59e>] CoBaLt_ioctl+0xe/0x20 > [ 474.312850] [<ffffffffa41ab234>] ipipe_syscall_hook+0x114/0x320 > [ 474.312853] [<ffffffffa412f9bf>] __ipipe_notify_syscall+0xbf/0x170 > [ 474.312855] [<ffffffffa4080c11>] ? sigprocmask+0x51/0x80 > [ 474.312858] [<ffffffffa48fd7b7>] pipeline_syscall+0x8/0x1b > [ 474.312859] Code: 00 10 40 48 8d 4f 40 74 22 81 fe 23 00 10 40 75 > 10 8b 50 08 48 8b 30 48 89 cf e8 b7 fd ff ff 5d c3 48 89 c2 e8 5d 26 > fd ff 5d c3 <8b> 50 08 48 8b 30 48 89 cf e8 6d fa ff ff 5d c3 48 89 c2 > e8 13 > [ 474.312890] RIP [<ffffffffc0621465>] rt_udp_ioctl+0x45/0x5f [rtudp] > [ 474.312892] RSP <ffffa4cc080d7e20> > [ 474.312893] CR2: 00007ffcb25562e8 > [ 474.312895] ---[ end trace b2113f37ad3abd56 ]--- > [ 489.183060] BUG: unable to handle kernel paging request at 00007fff6fe2a908 > [ 489.183064] IP: [<ffffffffc0621465>] rt_udp_ioctl+0x45/0x5f [rtudp] > [ 489.183067] PGD 80b14a067 > [ 489.183068] PUD 812af3067 > [ 489.183070] PMD 810e50067 > [ 489.183070] PTE 8000000805867867 > > --------------------- > > I am using some 3 months old xenomai-3.0. > But in latest commits also I could not find any fix for it. > > If there is any fix available for it please let me know. >
Likely fixed in stable-3.0.x (upcoming 3.0.7). Please retry with that git branch. Jan -- Siemens AG, Corporate Technology, CT RDA IOT SES-DE Corporate Competence Center Embedded Linux _______________________________________________ Xenomai mailing list [email protected] https://xenomai.org/mailman/listinfo/xenomai
