RE: hv_netvsc: WARNING in softirq.c
> -Original Message- > From: Richard Genoud [mailto:richard.gen...@gmail.com] > Sent: Friday, April 05, 2013 7:00 AM > To: Haiyang Zhang > Cc: KY Srinivasan; de...@linuxdriverproject.org; net...@vger.kernel.org; > linux-kernel@vger.kernel.org > Subject: Re: hv_netvsc: WARNING in softirq.c > > Ok, it has been a little bit more than 2 weeks now, and I did not see this > warning any more, just the > "hv_vmbus: child device vmbus_0_8 unregistered" sometimes. > > so it seems to be fixed ! > > Thanks ! > > > Reported-by: Richard Genoud > Tested-by: Richard Genoud > Thank you! I will submit the patch soon. - Haiyang
Re: hv_netvsc: WARNING in softirq.c
2013/3/19 Richard Genoud : > 2013/3/7 Richard Genoud : >> 2013/3/6 Haiyang Zhang : >>> I have found a simple way to reproduce this kind of warning: >>> 1) reboot the VM (because this warning can be displayed only once.) >>> 2) login to the host and open the VM [Settings] >>> 3) Temporarily change the Network adapter's option [Virtual Switch] to "Not >>> connected". >>> 4) run dmesg, you should see the warning. >>> >>> The reason for the warning is -- netif_tx_disable() is called when the NIC >>> is disconnected. And it's called within irq context. netif_tx_disable() >>> calls local_bh_enable() which displays warning if in irq. >>> >>> The fix is to remove the unnecessary netif_tx_disable() in the >>> netvsc_linkstatus_callback(). >>> I attached a patch. Would you like to test it on your side as well? > > I installed the patched kernel today. > here are the stats of the warings until today : > kern.log.1:Mar 12 22:32:10 devlabo kernel: [30114.506299] > [ cut here ] > kern.log.2:Mar 5 22:30:48 devlabo kernel: [10455.098586] > [ cut here ] > kern.log.2:Mar 6 22:31:25 devlabo kernel: [85552.645480] > [ cut here ] > kern.log.3:Feb 26 22:35:14 devlabo kernel: [37398.788119] > [ cut here ] > kern.log.3:Feb 27 22:34:37 devlabo kernel: [10688.187196] > [ cut here ] > kern.log.4:Feb 22 22:32:22 devlabo kernel: [40399.795364] > [ cut here ] > > So, I'll wait for one or two weeks before sending some feedback. > Ok, it has been a little bit more than 2 weeks now, and I did not see this warning any more, just the "hv_vmbus: child device vmbus_0_8 unregistered" sometimes. so it seems to be fixed ! Thanks ! Reported-by: Richard Genoud Tested-by: Richard Genoud Regards, Richard -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: hv_netvsc: WARNING in softirq.c
2013/3/19 Richard Genoud richard.gen...@gmail.com: 2013/3/7 Richard Genoud richard.gen...@gmail.com: 2013/3/6 Haiyang Zhang haiya...@microsoft.com: I have found a simple way to reproduce this kind of warning: 1) reboot the VM (because this warning can be displayed only once.) 2) login to the host and open the VM [Settings] 3) Temporarily change the Network adapter's option [Virtual Switch] to Not connected. 4) run dmesg, you should see the warning. The reason for the warning is -- netif_tx_disable() is called when the NIC is disconnected. And it's called within irq context. netif_tx_disable() calls local_bh_enable() which displays warning if in irq. The fix is to remove the unnecessary netif_tx_disable() in the netvsc_linkstatus_callback(). I attached a patch. Would you like to test it on your side as well? I installed the patched kernel today. here are the stats of the warings until today : kern.log.1:Mar 12 22:32:10 devlabo kernel: [30114.506299] [ cut here ] kern.log.2:Mar 5 22:30:48 devlabo kernel: [10455.098586] [ cut here ] kern.log.2:Mar 6 22:31:25 devlabo kernel: [85552.645480] [ cut here ] kern.log.3:Feb 26 22:35:14 devlabo kernel: [37398.788119] [ cut here ] kern.log.3:Feb 27 22:34:37 devlabo kernel: [10688.187196] [ cut here ] kern.log.4:Feb 22 22:32:22 devlabo kernel: [40399.795364] [ cut here ] So, I'll wait for one or two weeks before sending some feedback. Ok, it has been a little bit more than 2 weeks now, and I did not see this warning any more, just the hv_vmbus: child device vmbus_0_8 unregistered sometimes. so it seems to be fixed ! Thanks ! Reported-by: Richard Genoud richard.gen...@gmail.com Tested-by: Richard Genoud richard.gen...@gmail.com Regards, Richard -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
RE: hv_netvsc: WARNING in softirq.c
-Original Message- From: Richard Genoud [mailto:richard.gen...@gmail.com] Sent: Friday, April 05, 2013 7:00 AM To: Haiyang Zhang Cc: KY Srinivasan; de...@linuxdriverproject.org; net...@vger.kernel.org; linux-kernel@vger.kernel.org Subject: Re: hv_netvsc: WARNING in softirq.c Ok, it has been a little bit more than 2 weeks now, and I did not see this warning any more, just the hv_vmbus: child device vmbus_0_8 unregistered sometimes. so it seems to be fixed ! Thanks ! Reported-by: Richard Genoud richard.gen...@gmail.com Tested-by: Richard Genoud richard.gen...@gmail.com Thank you! I will submit the patch soon. - Haiyang
Re: hv_netvsc: WARNING in softirq.c
2013/3/7 Richard Genoud : > 2013/3/6 Haiyang Zhang : >> I have found a simple way to reproduce this kind of warning: >> 1) reboot the VM (because this warning can be displayed only once.) >> 2) login to the host and open the VM [Settings] >> 3) Temporarily change the Network adapter's option [Virtual Switch] to "Not >> connected". >> 4) run dmesg, you should see the warning. >> >> The reason for the warning is -- netif_tx_disable() is called when the NIC >> is disconnected. And it's called within irq context. netif_tx_disable() >> calls local_bh_enable() which displays warning if in irq. >> >> The fix is to remove the unnecessary netif_tx_disable() in the >> netvsc_linkstatus_callback(). >> I attached a patch. Would you like to test it on your side as well? I installed the patched kernel today. here are the stats of the warings until today : kern.log.1:Mar 12 22:32:10 devlabo kernel: [30114.506299] [ cut here ] kern.log.2:Mar 5 22:30:48 devlabo kernel: [10455.098586] [ cut here ] kern.log.2:Mar 6 22:31:25 devlabo kernel: [85552.645480] [ cut here ] kern.log.3:Feb 26 22:35:14 devlabo kernel: [37398.788119] [ cut here ] kern.log.3:Feb 27 22:34:37 devlabo kernel: [10688.187196] [ cut here ] kern.log.4:Feb 22 22:32:22 devlabo kernel: [40399.795364] [ cut here ] So, I'll wait for one or two weeks before sending some feedback. Regards, Richard -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: hv_netvsc: WARNING in softirq.c
2013/3/7 Richard Genoud richard.gen...@gmail.com: 2013/3/6 Haiyang Zhang haiya...@microsoft.com: I have found a simple way to reproduce this kind of warning: 1) reboot the VM (because this warning can be displayed only once.) 2) login to the host and open the VM [Settings] 3) Temporarily change the Network adapter's option [Virtual Switch] to Not connected. 4) run dmesg, you should see the warning. The reason for the warning is -- netif_tx_disable() is called when the NIC is disconnected. And it's called within irq context. netif_tx_disable() calls local_bh_enable() which displays warning if in irq. The fix is to remove the unnecessary netif_tx_disable() in the netvsc_linkstatus_callback(). I attached a patch. Would you like to test it on your side as well? I installed the patched kernel today. here are the stats of the warings until today : kern.log.1:Mar 12 22:32:10 devlabo kernel: [30114.506299] [ cut here ] kern.log.2:Mar 5 22:30:48 devlabo kernel: [10455.098586] [ cut here ] kern.log.2:Mar 6 22:31:25 devlabo kernel: [85552.645480] [ cut here ] kern.log.3:Feb 26 22:35:14 devlabo kernel: [37398.788119] [ cut here ] kern.log.3:Feb 27 22:34:37 devlabo kernel: [10688.187196] [ cut here ] kern.log.4:Feb 22 22:32:22 devlabo kernel: [40399.795364] [ cut here ] So, I'll wait for one or two weeks before sending some feedback. Regards, Richard -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: hv_netvsc: WARNING in softirq.c
2013/3/6 Haiyang Zhang : > I have found a simple way to reproduce this kind of warning: > 1) reboot the VM (because this warning can be displayed only once.) > 2) login to the host and open the VM [Settings] > 3) Temporarily change the Network adapter's option [Virtual Switch] to "Not > connected". > 4) run dmesg, you should see the warning. > > The reason for the warning is -- netif_tx_disable() is called when the NIC > is disconnected. And it's called within irq context. netif_tx_disable() > calls local_bh_enable() which displays warning if in irq. > > The fix is to remove the unnecessary netif_tx_disable() in the > netvsc_linkstatus_callback(). > I attached a patch. Would you like to test it on your side as well? > > Thanks, > - Haiyang > Thanks for your reply. I'll be able to test your patch in 2 or 3 weeks I guess (I haven't got any access to the hyperV machine, the admin-sys is on holiday, and it's a production server... So I don't want to mess with it right now :) ) Regards, Richard. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: hv_netvsc: WARNING in softirq.c
2013/3/6 Haiyang Zhang haiya...@microsoft.com: I have found a simple way to reproduce this kind of warning: 1) reboot the VM (because this warning can be displayed only once.) 2) login to the host and open the VM [Settings] 3) Temporarily change the Network adapter's option [Virtual Switch] to Not connected. 4) run dmesg, you should see the warning. The reason for the warning is -- netif_tx_disable() is called when the NIC is disconnected. And it's called within irq context. netif_tx_disable() calls local_bh_enable() which displays warning if in irq. The fix is to remove the unnecessary netif_tx_disable() in the netvsc_linkstatus_callback(). I attached a patch. Would you like to test it on your side as well? Thanks, - Haiyang Thanks for your reply. I'll be able to test your patch in 2 or 3 weeks I guess (I haven't got any access to the hyperV machine, the admin-sys is on holiday, and it's a production server... So I don't want to mess with it right now :) ) Regards, Richard. -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
RE: hv_netvsc: WARNING in softirq.c
> -Original Message- > From: Richard Genoud [mailto:richard.gen...@gmail.com] > Sent: Friday, March 01, 2013 3:39 AM > To: Haiyang Zhang > Cc: KY Srinivasan; de...@linuxdriverproject.org; net...@vger.kernel.org; > linux-kernel@vger.kernel.org > Subject: Re: hv_netvsc: WARNING in softirq.c > > 2013/2/28 Haiyang Zhang : > > We will look into this. And further info around the time will also be > helpful. > > > > Thanks, > > - Haiyang > > The only thing the admin sys could think about is a rsync process > between the windows host and ANOTHER linux guest that ends at 22h30 > more or less. > (the other linux guest is a debian 6, without any HV driver) I have found a simple way to reproduce this kind of warning: 1) reboot the VM (because this warning can be displayed only once.) 2) login to the host and open the VM [Settings] 3) Temporarily change the Network adapter's option [Virtual Switch] to "Not connected". 4) run dmesg, you should see the warning. The reason for the warning is -- netif_tx_disable() is called when the NIC is disconnected. And it's called within irq context. netif_tx_disable() calls local_bh_enable() which displays warning if in irq. The fix is to remove the unnecessary netif_tx_disable() in the netvsc_linkstatus_callback(). I attached a patch. Would you like to test it on your side as well? Thanks, - Haiyang net_stat_warn_test.patch Description: net_stat_warn_test.patch
RE: hv_netvsc: WARNING in softirq.c
-Original Message- From: Richard Genoud [mailto:richard.gen...@gmail.com] Sent: Friday, March 01, 2013 3:39 AM To: Haiyang Zhang Cc: KY Srinivasan; de...@linuxdriverproject.org; net...@vger.kernel.org; linux-kernel@vger.kernel.org Subject: Re: hv_netvsc: WARNING in softirq.c 2013/2/28 Haiyang Zhang haiya...@microsoft.com: We will look into this. And further info around the time will also be helpful. Thanks, - Haiyang The only thing the admin sys could think about is a rsync process between the windows host and ANOTHER linux guest that ends at 22h30 more or less. (the other linux guest is a debian 6, without any HV driver) I have found a simple way to reproduce this kind of warning: 1) reboot the VM (because this warning can be displayed only once.) 2) login to the host and open the VM [Settings] 3) Temporarily change the Network adapter's option [Virtual Switch] to Not connected. 4) run dmesg, you should see the warning. The reason for the warning is -- netif_tx_disable() is called when the NIC is disconnected. And it's called within irq context. netif_tx_disable() calls local_bh_enable() which displays warning if in irq. The fix is to remove the unnecessary netif_tx_disable() in the netvsc_linkstatus_callback(). I attached a patch. Would you like to test it on your side as well? Thanks, - Haiyang net_stat_warn_test.patch Description: net_stat_warn_test.patch
Re: hv_netvsc: WARNING in softirq.c
2013/2/28 Haiyang Zhang : > We will look into this. And further info around the time will also be helpful. > > Thanks, > - Haiyang The only thing the admin sys could think about is a rsync process between the windows host and ANOTHER linux guest that ends at 22h30 more or less. (the other linux guest is a debian 6, without any HV driver) -- for me, ck means con kolivas and not calvin klein... does it mean I'm a geek ? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: hv_netvsc: WARNING in softirq.c
2013/2/28 Haiyang Zhang haiya...@microsoft.com: We will look into this. And further info around the time will also be helpful. Thanks, - Haiyang The only thing the admin sys could think about is a rsync process between the windows host and ANOTHER linux guest that ends at 22h30 more or less. (the other linux guest is a debian 6, without any HV driver) -- for me, ck means con kolivas and not calvin klein... does it mean I'm a geek ? -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
RE: hv_netvsc: WARNING in softirq.c
> -Original Message- > From: Richard GENOUD [mailto:richard.gen...@gmail.com] > Sent: Thursday, February 28, 2013 3:35 AM > To: KY Srinivasan > Cc: Haiyang Zhang; de...@linuxdriverproject.org; net...@vger.kernel.org; > linux-kernel@vger.kernel.org > Subject: hv_netvsc: WARNING in softirq.c > > 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][] ? > warn_slowpath_common+0x78/0x8c > Feb 27 22:34:37 devlabo kernel: [10688.187257] [] ? > _local_bh_enable_ip.isra.11+0x3d/0x88 > Feb 27 22:34:37 devlabo kernel: [10688.187262] [] ? > rndis_filter_receive+0x236/0x259 [hv_netvsc] > Feb 27 22:34:37 devlabo kernel: [10688.187267] [] ? > netvsc_channel_cb+0x37a/0x449 [hv_netvsc] > Feb 27 22:34:37 devlabo kernel: [10688.187273] [] ? > vmbus_on_event+0x91/0xdd [hv_vmbus] > Feb 27 22:34:37 devlabo kernel: [10688.187277] [] ? > add_interrupt_randomness+0x38/0x155 > Feb 27 22:34:37 devlabo kernel: [10688.187283] [] ? > tasklet_action+0x73/0xc2 > Feb 27 22:34:37 devlabo kernel: [10688.187287] [] ? > __do_softirq+0xb9/0x177 > Feb 27 22:34:37 devlabo kernel: [10688.187292] [] ? > call_softirq+0x1c/0x30 > Feb 27 22:34:37 devlabo kernel: [10688.187297] [] ? > do_softirq+0x3c/0x7b > Feb 27 22:34:37 devlabo kernel: [10688.187300] [] ? > irq_exit+0x3c/0x9a > Feb 27 22:34:37 devlabo kernel: [10688.187303] [] ? > do_IRQ+0x82/0x98 > Feb 27 22:34:37 devlabo kernel: [10688.187307] [] ? > common_interrupt+0x6e/0x6e > Feb 27 22:34:37 devlabo kernel: [10688.187309][] ? > timekeeping_get_ns+0xd/0x2a > Feb 27 22:34:37 devlabo kernel: [10688.187317] [] ? > arch_local_irq_enable+0x4/0x8 > Feb 27 22:34:37 devlabo kernel: [10688.187321] [] ? > cpu_idle+0xe8/0xf2 > Feb 27 22:34:37 devlabo kernel: [10688.187324] [] ? > start_kernel+0x3b3/0x3be > Feb 27 22:34:37 devlabo kernel: [10688.187328] [] ? > early_idt_handlers+0x140/0x140 > Feb 27 22:34:37 devlabo kernel: [10688.187331] [] ? > 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][] ? > warn_slowpath_common+0x78/0x8c > Feb 26 22:35:14 devlabo kernel: [37398.788181] [] ? > _local_bh_enable_ip.isra.11+0x3d/0x88 > Feb 26 22:35:14 devlabo kernel: [37398.788186] [] ? > rndis_filter_receive+0x236/0x259 [hv_netvsc] > Feb 26 22:35:14 devlabo kernel: [37398.788190] [] ? > netvsc_channel_cb+0x37a/0x449 [hv_netvsc] > Feb 26 22:35:14 devlabo kernel: [37398.788196] [] ? > vmbus_on_event+0x91/0xdd [hv_vmbus] > Feb 26 22:35:14 devlabo kernel: [37398.788200] [] ? > tasklet_action+0x73/0xc2 > Feb 26 22:35:14 devlabo kernel: [37398.788203] [] ? > __do_softirq+0xb9/0x177 > Feb 26 22:35:14 devlabo kernel:
RE: hv_netvsc: WARNING in softirq.c
-Original Message- From: Richard GENOUD [mailto:richard.gen...@gmail.com] Sent: Thursday, February 28, 2013 3:35 AM To: KY Srinivasan Cc: Haiyang Zhang; de...@linuxdriverproject.org; net...@vger.kernel.org; linux-kernel@vger.kernel.org Subject: hv_netvsc: WARNING in softirq.c 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 [81046a75] ? warn_slowpath_common+0x78/0x8c Feb 27 22:34:37 devlabo kernel: [10688.187257] [8104bf76] ? _local_bh_enable_ip.isra.11+0x3d/0x88 Feb 27 22:34:37 devlabo kernel: [10688.187262] [a00a59b5] ? rndis_filter_receive+0x236/0x259 [hv_netvsc] Feb 27 22:34:37 devlabo kernel: [10688.187267] [a00a4e5f] ? netvsc_channel_cb+0x37a/0x449 [hv_netvsc] Feb 27 22:34:37 devlabo kernel: [10688.187273] [a006211b] ? vmbus_on_event+0x91/0xdd [hv_vmbus] Feb 27 22:34:37 devlabo kernel: [10688.187277] [812432d5] ? add_interrupt_randomness+0x38/0x155 Feb 27 22:34:37 devlabo kernel: [10688.187283] [8104b89a] ? tasklet_action+0x73/0xc2 Feb 27 22:34:37 devlabo kernel: [10688.187287] [8104c084] ? __do_softirq+0xb9/0x177 Feb 27 22:34:37 devlabo kernel: [10688.187292] [8135426c] ? call_softirq+0x1c/0x30 Feb 27 22:34:37 devlabo kernel: [10688.187297] [8100f8dd] ? do_softirq+0x3c/0x7b Feb 27 22:34:37 devlabo kernel: [10688.187300] [8104c2ec] ? irq_exit+0x3c/0x9a Feb 27 22:34:37 devlabo kernel: [10688.187303] [8100f60d] ? do_IRQ+0x82/0x98 Feb 27 22:34:37 devlabo kernel: [10688.187307] [8134d32e] ? common_interrupt+0x6e/0x6e Feb 27 22:34:37 devlabo kernel: [10688.187309] EOI [81065dbd] ? timekeeping_get_ns+0xd/0x2a Feb 27 22:34:37 devlabo kernel: [10688.187317] [8106bc20] ? arch_local_irq_enable+0x4/0x8 Feb 27 22:34:37 devlabo kernel: [10688.187321] [8100d286] ? cpu_idle+0xe8/0xf2 Feb 27 22:34:37 devlabo kernel: [10688.187324] [816abb33] ? start_kernel+0x3b3/0x3be Feb 27 22:34:37 devlabo kernel: [10688.187328] [816ab140] ? early_idt_handlers+0x140/0x140 Feb 27 22:34:37 devlabo kernel: [10688.187331] [816ab3c4] ? 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 [81046a75] ? warn_slowpath_common+0x78/0x8c Feb 26 22:35:14 devlabo kernel: [37398.788181] [8104bf76] ? _local_bh_enable_ip.isra.11+0x3d/0x88 Feb 26 22:35:14 devlabo kernel: [37398.788186] [a009e9b5] ? rndis_filter_receive+0x236/0x259 [hv_netvsc] Feb 26 22:35:14 devlabo kernel: [37398.788190] [a009de5f] ? netvsc_channel_cb+0x37a/0x449 [hv_netvsc] Feb 26 22:35:14
