Hi, Here is the kernel trace I got this morning (kern.log): Feb 27 22:32:59 devlabo kernel: [10688.187062] hv_vmbus: child device vmbus_0_8 unregistered Feb 27 22:34:37 devlabo kernel: [10688.187196] ------------[ cut here ]------------ Feb 27 22:34:37 devlabo kernel: [10688.187203] WARNING: at /build/buildd-linux_3.2.35-2-amd64-v9djlH/linux-3.2.35/kernel/softirq.c:159 _local_bh_enable_ip.isra.11+0x3d/0x88() Feb 27 22:34:37 devlabo kernel: [10688.187206] Hardware name: Virtual Machine Feb 27 22:34:37 devlabo kernel: [10688.187208] Modules linked in: des_generic ecb md4 hmac nls_utf8 cifs nfsd nfs nfs_acl auth_rpcgss fscache lockd sunrpc loop snd_pcm snd_page_alloc snd_timer snd joydev processor hid_hyperv crc32c_intel hid thermal_sys i2c_piix4 evdev button soundcore hv_utils i2c_core psmouse serio_raw pcspkr ext4 crc16 jbd2 mbcache sd_mod crc_t10dif hv_netvsc hv_storvsc sg sr_mod cdrom ata_generic floppy hv_vmbus ata_piix libata scsi_mod [last unloaded: scsi_wait_scan] Feb 27 22:34:37 devlabo kernel: [10688.187244] Pid: 0, comm: swapper/0 Not tainted 3.2.0-4-amd64 #1 Debian 3.2.35-2 Feb 27 22:34:37 devlabo kernel: [10688.187246] Call Trace: Feb 27 22:34:37 devlabo kernel: [10688.187248] <IRQ> [<ffffffff81046a75>] ? warn_slowpath_common+0x78/0x8c Feb 27 22:34:37 devlabo kernel: [10688.187257] [<ffffffff8104bf76>] ? _local_bh_enable_ip.isra.11+0x3d/0x88 Feb 27 22:34:37 devlabo kernel: [10688.187262] [<ffffffffa00a59b5>] ? rndis_filter_receive+0x236/0x259 [hv_netvsc] Feb 27 22:34:37 devlabo kernel: [10688.187267] [<ffffffffa00a4e5f>] ? netvsc_channel_cb+0x37a/0x449 [hv_netvsc] Feb 27 22:34:37 devlabo kernel: [10688.187273] [<ffffffffa006211b>] ? vmbus_on_event+0x91/0xdd [hv_vmbus] Feb 27 22:34:37 devlabo kernel: [10688.187277] [<ffffffff812432d5>] ? add_interrupt_randomness+0x38/0x155 Feb 27 22:34:37 devlabo kernel: [10688.187283] [<ffffffff8104b89a>] ? tasklet_action+0x73/0xc2 Feb 27 22:34:37 devlabo kernel: [10688.187287] [<ffffffff8104c084>] ? __do_softirq+0xb9/0x177 Feb 27 22:34:37 devlabo kernel: [10688.187292] [<ffffffff8135426c>] ? call_softirq+0x1c/0x30 Feb 27 22:34:37 devlabo kernel: [10688.187297] [<ffffffff8100f8dd>] ? do_softirq+0x3c/0x7b Feb 27 22:34:37 devlabo kernel: [10688.187300] [<ffffffff8104c2ec>] ? irq_exit+0x3c/0x9a Feb 27 22:34:37 devlabo kernel: [10688.187303] [<ffffffff8100f60d>] ? do_IRQ+0x82/0x98 Feb 27 22:34:37 devlabo kernel: [10688.187307] [<ffffffff8134d32e>] ? common_interrupt+0x6e/0x6e Feb 27 22:34:37 devlabo kernel: [10688.187309] <EOI> [<ffffffff81065dbd>] ? timekeeping_get_ns+0xd/0x2a Feb 27 22:34:37 devlabo kernel: [10688.187317] [<ffffffff8106bc20>] ? arch_local_irq_enable+0x4/0x8 Feb 27 22:34:37 devlabo kernel: [10688.187321] [<ffffffff8100d286>] ? cpu_idle+0xe8/0xf2 Feb 27 22:34:37 devlabo kernel: [10688.187324] [<ffffffff816abb33>] ? start_kernel+0x3b3/0x3be Feb 27 22:34:37 devlabo kernel: [10688.187328] [<ffffffff816ab140>] ? early_idt_handlers+0x140/0x140 Feb 27 22:34:37 devlabo kernel: [10688.187331] [<ffffffff816ab3c4>] ? x86_64_start_kernel+0x104/0x111 Feb 27 22:34:37 devlabo kernel: [10688.187333] ---[ end trace 39158641c6e4b495 ]--- and there was a lot of them : Feb 26 22:35:14 devlabo kernel: [37398.788119] ------------[ cut here ]------------ Feb 26 22:35:14 devlabo kernel: [37398.788129] WARNING: at /build/buildd-linux_3.2.35-2-amd64-v9djlH/linux-3.2.35/kernel/softirq.c:159 _local_bh_enable_ip.isra.11+0x3d/0x88() Feb 26 22:35:14 devlabo kernel: [37398.788132] Hardware name: Virtual Machine Feb 26 22:35:14 devlabo kernel: [37398.788133] Modules linked in: nfsd nfs nfs_acl auth_rpcgss lockd sunrpc des_generic ecb md4 hmac nls_utf8 cifs fscache loop snd_pcm snd_page_alloc snd_timer joydev crc32c_intel i2c_piix4 snd processor hid_hyperv hid hv_utils soundcore button thermal_sys pcspkr i2c_core psmouse evdev serio_raw ext4 crc16 jbd2 mbcache sd_mod crc_t10dif hv_netvsc hv_storvsc sg sr_mod cdrom ata_generic ata_piix libata scsi_mod floppy hv_vmbus [last unloaded: scsi_wait_scan] Feb 26 22:35:14 devlabo kernel: [37398.788169] Pid: 0, comm: swapper/0 Not tainted 3.2.0-4-amd64 #1 Debian 3.2.35-2 Feb 26 22:35:14 devlabo kernel: [37398.788171] Call Trace: Feb 26 22:35:14 devlabo kernel: [37398.788172] <IRQ> [<ffffffff81046a75>] ? warn_slowpath_common+0x78/0x8c Feb 26 22:35:14 devlabo kernel: [37398.788181] [<ffffffff8104bf76>] ? _local_bh_enable_ip.isra.11+0x3d/0x88 Feb 26 22:35:14 devlabo kernel: [37398.788186] [<ffffffffa009e9b5>] ? rndis_filter_receive+0x236/0x259 [hv_netvsc] Feb 26 22:35:14 devlabo kernel: [37398.788190] [<ffffffffa009de5f>] ? netvsc_channel_cb+0x37a/0x449 [hv_netvsc] Feb 26 22:35:14 devlabo kernel: [37398.788196] [<ffffffffa000111b>] ? vmbus_on_event+0x91/0xdd [hv_vmbus] Feb 26 22:35:14 devlabo kernel: [37398.788200] [<ffffffff8104b89a>] ? tasklet_action+0x73/0xc2 Feb 26 22:35:14 devlabo kernel: [37398.788203] [<ffffffff8104c084>] ? __do_softirq+0xb9/0x177 Feb 26 22:35:14 devlabo kernel: [37398.788207] [<ffffffff81061755>] ? run_posix_cpu_timers+0x23/0x346 Feb 26 22:35:14 devlabo kernel: [37398.788211] [<ffffffff8135426c>] ? call_softirq+0x1c/0x30 Feb 26 22:35:14 devlabo kernel: [37398.788216] [<ffffffff8100f8dd>] ? do_softirq+0x3c/0x7b Feb 26 22:35:14 devlabo kernel: [37398.788218] [<ffffffff8104c2ec>] ? irq_exit+0x3c/0x9a Feb 26 22:35:14 devlabo kernel: [37398.788222] [<ffffffff810241c8>] ? smp_apic_timer_interrupt+0x74/0x82 Feb 26 22:35:14 devlabo kernel: [37398.788225] [<ffffffff81352ade>] ? apic_timer_interrupt+0x6e/0x80 Feb 26 22:35:14 devlabo kernel: [37398.788227] <EOI> [<ffffffff81013a17>] ? native_sched_clock+0x27/0x2f Feb 26 22:35:14 devlabo kernel: [37398.788233] [<ffffffff8102b360>] ? native_safe_halt+0x2/0x3 Feb 26 22:35:14 devlabo kernel: [37398.788236] [<ffffffff81014508>] ? default_idle+0x47/0x7f Feb 26 22:35:14 devlabo kernel: [37398.788238] [<ffffffff8100d24d>] ? cpu_idle+0xaf/0xf2 Feb 26 22:35:14 devlabo kernel: [37398.788241] [<ffffffff816abb33>] ? start_kernel+0x3b3/0x3be Feb 26 22:35:14 devlabo kernel: [37398.788244] [<ffffffff816ab140>] ? early_idt_handlers+0x140/0x140 Feb 26 22:35:14 devlabo kernel: [37398.788247] [<ffffffff816ab3c4>] ? x86_64_start_kernel+0x104/0x111 Feb 26 22:35:14 devlabo kernel: [37398.788249] ---[ end trace 8f3991272dc0c5cc ]--- Feb 26 22:35:14 devlabo kernel: [37398.789256] hv_vmbus: child device vmbus_0_8 unregistered Feb 3 22:31:55 devlabo kernel: [37819.617243] ------------[ cut here ]------------ Feb 3 22:31:55 devlabo kernel: [37819.617253] WARNING: at /build/buildd-linux_3.2.35-2-amd64-v9djlH/linux-3.2.35/kernel/softirq.c:159 _local_bh_enable_ip.isra.11+0x3d/0x88() Feb 3 22:31:55 devlabo kernel: [37819.617257] Hardware name: Virtual Machine Feb 3 22:31:55 devlabo kernel: [37819.617259] Modules linked in: nfsd nfs nfs_acl auth_rpcgss lockd sunrpc des_generic ecb md4 hmac nls_utf8 cifs fscache loop joydev snd_pcm hid_hyperv hid snd_page_alloc snd_timer snd hv_utils i2c_piix4 i2c_core soundcore processor psmouse crc32c_intel thermal_sys button pcspkr evdev serio_raw ext4 crc16 jbd2 mbcache sd_mod crc_t10dif hv_netvsc hv_storvsc sg sr_mod cdrom ata_generic hv_vmbus ata_piix floppy libata scsi_mod [last unloaded: scsi_wait_scan] Feb 3 22:31:55 devlabo kernel: [37819.617308] Pid: 0, comm: swapper/0 Not tainted 3.2.0-4-amd64 #1 Debian 3.2.35-2 Feb 3 22:31:55 devlabo kernel: [37819.617311] Call Trace: Feb 3 22:31:55 devlabo kernel: [37819.617313] <IRQ> [<ffffffff81046a75>] ? warn_slowpath_common+0x78/0x8c Feb 3 22:31:55 devlabo kernel: [37819.617324] [<ffffffff8104bf76>] ? _local_bh_enable_ip.isra.11+0x3d/0x88 Feb 3 22:31:55 devlabo kernel: [37819.617331] [<ffffffffa00a09b5>] ? rndis_filter_receive+0x236/0x259 [hv_netvsc] Feb 3 22:31:55 devlabo kernel: [37819.617339] [<ffffffffa009fe5f>] ? netvsc_channel_cb+0x37a/0x449 [hv_netvsc] Feb 3 22:31:55 devlabo kernel: [37819.617347] [<ffffffffa006211b>] ? vmbus_on_event+0x91/0xdd [hv_vmbus] Feb 3 22:31:55 devlabo kernel: [37819.617353] [<ffffffff8104b89a>] ? tasklet_action+0x73/0xc2 Feb 3 22:31:55 devlabo kernel: [37819.617357] [<ffffffff8104c084>] ? __do_softirq+0xb9/0x177 Feb 3 22:31:55 devlabo kernel: [37819.617362] [<ffffffff81061755>] ? run_posix_cpu_timers+0x23/0x346 Feb 3 22:31:55 devlabo kernel: [37819.617366] [<ffffffff8104c350>] ? raise_softirq_irqoff+0x6/0x25 Feb 3 22:31:55 devlabo kernel: [37819.617372] [<ffffffff8135426c>] ? call_softirq+0x1c/0x30 Feb 3 22:31:55 devlabo kernel: [37819.617378] [<ffffffff8100f8dd>] ? do_softirq+0x3c/0x7b Feb 3 22:31:55 devlabo kernel: [37819.617382] [<ffffffff8104c2ec>] ? irq_exit+0x3c/0x9a Feb 3 22:31:55 devlabo kernel: [37819.617387] [<ffffffff810241c8>] ? smp_apic_timer_interrupt+0x74/0x82 Feb 3 22:31:55 devlabo kernel: [37819.617391] [<ffffffff81352ade>] ? apic_timer_interrupt+0x6e/0x80 Feb 3 22:31:55 devlabo kernel: [37819.617394] <EOI> [<ffffffff81013a17>] ? native_sched_clock+0x27/0x2f Feb 3 22:31:55 devlabo kernel: [37819.617402] [<ffffffff8102b360>] ? native_safe_halt+0x2/0x3 Feb 3 22:31:55 devlabo kernel: [37819.617407] [<ffffffff81014508>] ? default_idle+0x47/0x7f Feb 3 22:31:55 devlabo kernel: [37819.617411] [<ffffffff8100d24d>] ? cpu_idle+0xaf/0xf2 Feb 3 22:31:55 devlabo kernel: [37819.617415] [<ffffffff816abb33>] ? start_kernel+0x3b3/0x3be Feb 3 22:31:55 devlabo kernel: [37819.617420] [<ffffffff816ab140>] ? early_idt_handlers+0x140/0x140 Feb 3 22:31:55 devlabo kernel: [37819.617424] [<ffffffff816ab3c4>] ? x86_64_start_kernel+0x104/0x111 Feb 3 22:31:55 devlabo kernel: [37819.617427] ---[ end trace a20acc0adc92e993 ]--- Feb 3 22:31:55 devlabo kernel: [37819.618127] hv_vmbus: child device vmbus_0_8 unregistered It does not happen every day, but quite often : 4 times in February I'll ask my sysadm if there's something special at 22h30 in the host, because it's always happening around this time. Machine is debian wheezy (7) under windows server 2008 R2 Regards Richard _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/devel
