Hello! I installed a SL 5.7 x86_64 system and upgraded to latest packages with yum. Then I install kernel-rt from CERN MRG repository with adding repo files as recommended. I would like to play with MRG a bit. The kernel shipped with SL 5.7 is 2.6.18-274.17.1.el5 and the MRG kernel is 2.6.33.9-rt31.67.el5rt. When I use the system with kernel-rt the network on motherboard crashed after a while giving the following error message:
Jan 30 16:50:08 lrtest kernel: ------------[ cut here ]------------ Jan 30 16:50:08 lrtest kernel: WARNING: at net/sched/sch_generic.c:259 dev_watchdog+0x11d/0x193() Jan 30 16:50:08 lrtest kernel: Hardware name: Jan 30 16:50:08 lrtest kernel: NETDEV WATCHDOG: eth0 (e100): transmit queue 0 timed out Jan 30 16:50:08 lrtest kernel: Modules linked in: oprofile autofs4 lm85 hwmon_vid hwmon hidp l2cap crc16 bluetooth rfkill lockd sunrpc dm_mirror dm_multipath scsi_dh video output sbs sbshc battery ac lp sg sr_mod cdrom skge e100 mii snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss serio_raw button parport_pc parport floppy snd_pcm snd_timer tpm_tis tpm tpm_bios snd i2c_i801 soundcore i2c_core snd_page_alloc pcspkr intel_agp shpchp iTCO_wdt iTCO_vendor_support dm_region_hash dm_log dm_mod pata_acpi ata_piix ata_generic libata sd_mod crc_t10dif scsi_mod ext3 jbd mbcache uhci_hcd ohci_hcd ehci_hcd [last unloaded: hwlat_detector] Jan 30 16:50:08 lrtest kernel: Pid: 5, comm: sirq-timer/0 Not tainted 2.6.33.9-rt31.67.el5rt #1 Jan 30 16:50:08 lrtest kernel: Call Trace: Jan 30 16:50:08 lrtest kernel: [<ffffffff812d0f04>] ? dev_watchdog+0x11d/0x193 Jan 30 16:50:08 lrtest kernel: [<ffffffff8104233f>] warn_slowpath_common+0x7c/0x94 Jan 30 16:50:08 lrtest kernel: [<ffffffff810423d6>] warn_slowpath_fmt+0x69/0x6b Jan 30 16:50:08 lrtest kernel: [<ffffffff81032918>] ? cpuacct_charge+0x5b/0x64 Jan 30 16:50:08 lrtest kernel: [<ffffffff813565bf>] ? _raw_spin_unlock+0x28/0x33 Jan 30 16:50:08 lrtest kernel: [<ffffffff81356299>] ? rt_spin_lock+0x15/0x17 Jan 30 16:50:08 lrtest kernel: [<ffffffff8135626b>] ? rt_spin_unlock+0x15/0x17 Jan 30 16:50:08 lrtest kernel: [<ffffffff812d03e9>] ? __netif_tx_unlock+0x1a/0x1c Jan 30 16:50:08 lrtest kernel: [<ffffffff812d0437>] ? netif_tx_lock+0x4c/0x64 Jan 30 16:50:08 lrtest kernel: [<ffffffff812b956e>] ? netdev_drivername+0x48/0x4f Jan 30 16:50:08 lrtest kernel: [<ffffffff812d0f04>] dev_watchdog+0x11d/0x193 Jan 30 16:50:08 lrtest kernel: [<ffffffff8102f46a>] ? need_resched+0x23/0x2d Jan 30 16:50:08 lrtest kernel: [<ffffffff81050966>] run_timer_softirq+0x1e9/0x2c3 Jan 30 16:50:08 lrtest kernel: [<ffffffff812d0de7>] ? dev_watchdog+0x0/0x193 Jan 30 16:50:08 lrtest kernel: [<ffffffff81048b18>] run_ksoftirqd+0x17e/0x29e Jan 30 16:50:08 lrtest kernel: [<ffffffff8104899a>] ? run_ksoftirqd+0x0/0x29e Jan 30 16:50:08 lrtest kernel: [<ffffffff8105daad>] kthread+0x6e/0x76 Jan 30 16:50:08 lrtest kernel: [<ffffffff810373f8>] ? finish_task_switch+0x62/0x81 Jan 30 16:50:08 lrtest kernel: [<ffffffff81003a94>] kernel_thread_helper+0x4/0x10 Jan 30 16:50:08 lrtest kernel: [<ffffffff8105da3f>] ? kthread+0x0/0x76 Jan 30 16:50:08 lrtest kernel: [<ffffffff81003a90>] ? kernel_thread_helper+0x0/0x10 Jan 30 16:50:08 lrtest kernel: ---[ end trace 119d0fdfa1d74ba7 ]--- After error happens the system cannot access through terminal only from net (system has three cards). Looks like getty freeze or hang. When I try to shutdown/reboot the system it hangs at shutting down the interface eth0. The motherboard is an Intel D915GUX with latest BIOS EV91510A.86A.0482.2006.0222.2350. Now switch to non rt kernel hoping that will be fine. Anyone have similar experience? Any solution for this? Is it count that system is generic SL and the MRG kernel is CERN SL? Thanks, a
