Re: click Digest, Vol 105, Issue 2

Hi Yonas,

Thank you for your reply. Although I wanted to install Click in kernel
mode. Do you have any installation guide for that? I compiled click in user
mode as per the guide provided by you and it works without a problem. But
installation in kernel mode is what is causing major headaches for me.
Please help me with that.

Regards,
Udit Kumar

On Wed, Mar 7, 2012 at 11:14 PM, yoonas kassa <[email protected]> wrote:

> Hi kumar ..  installing on vmware,
> it works for me using the tutorial from this site
> http://www.pats.ua.ac.be/content/software/click-2.0/installation.pdf .make
> sure that you have recent gnu c++  compiler. clicky didnt work for me yet.
> regards.
> yonas
>
> On Wed, Mar 7, 2012 at 6:00 PM, <[email protected]> wrote:
>
> > Send click mailing list submissions to
> >        [email protected]
> >
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> > or, via email, send a message with subject or body 'help' to
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> >
> > When replying, please edit your Subject line so it is more specific
> > than "Re: Contents of click digest..."
> >
> >
> > Today's Topics:
> >
> >   1. kernel crash with dev_queue_xmit() (Noonan, Patrick J.)
> >   2. Problems in compiling Click on a virtual machine (udit kumar)
> >
> >
> > ----------------------------------------------------------------------
> >
> > Message: 1
> > Date: Tue, 6 Mar 2012 23:08:02 +0000
> > From: "Noonan, Patrick J." <[email protected]>
> > Subject: [Click] kernel crash with dev_queue_xmit()
> > To: "[email protected]" <[email protected]>
> > Message-ID: <CB7BEFF8.D2EC%[email protected]>
> > Content-Type: text/plain; charset="us-ascii"
> >
> > Hi All,
> >
> > I'm running patchless Click (pulled from git today) on Ubuntu 10.04
> > (kernel 2.6.32-38). Using the make-ip-conf.pl script I set up a 2-port
> > router config with the following topology.
> >
> > HostA::eth0 <==> eth1:Router:eth0 <==> HostB::eth0
> >
> > What I found is that if the ARP tables are empty in both end hosts and in
> > the router's ARPQuerier elements then the kernel will crash when trying
> to
> > send packets that have been queued in the ARPQuerier's ARPTable. Using
> > wireshark on the Click router I'm able to see the ARP query sent by
> Click;
> > however, it never makes it to the end host. This happens a few times and
> > ARPQuerier queues up packets. Eventually an ARP query makes it to the end
> > host, the end host replies, ARPQuerier begins emptying its queue and
> > finally the kernel crashes.
> >
> > After quite a bit of searching on the mailing list I decided to revert
> the
> > following ToDevice patch, and now ARP queries always make it to the end
> > host and the kernel no longer crashes.
> >
> https://github.com/kohler/click/commit/d65bfe4054a23468c808e95df4ab6b4a5ef9
> > d9a3
> >
> > Not sure why my setup is crashing with dev_queue_xmit(), or if no longer
> > using dev_queue_xmit() will cause other problems. Any help would be
> > greatly appreciated. Thanks.
> >
> >
> > [ 8023.115770] click: starting router thread pid 31116 (ed0fcd80)
> > [ 8483.153052] BUG: unable to handle kernel paging request at 0200a8c0
> > [ 8483.157020] IP: [<0200a8c0>] 0x200a8c0
> > [ 8483.157020] *pde = 00000000
> > [ 8483.157020] Oops: 0000 [#1] SMP
> > [ 8483.157020] last sysfs file:
> >
> /sys/devices/pci0000:00/0000:00:1f.2/host2/target2:0:0/2:0:0:0/block/sda/ue
> > vent
> > [ 8483.157020] Modules linked in: click proclikefs binfmt_misc
> > snd_hda_codec_realtek fbcon tileblit font bitblit softcursor vga16fb
> > vgastate snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss
> > snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi
> > snd_seq_midi_event snd_seq snd_timer snd_seq_device ppdev snd i915
> > drm_kms_helper parport_pc drm i2c_algo_bit video psmouse serio_raw
> > intel_agp agpgart soundcore output snd_page_alloc lp parport 8139too
> > floppy r8169 mii e1000e
> > [ 8483.157020]
> > [ 8483.157020] Pid: 31116, comm: kclick Not tainted (2.6.32-38-generic
> > #83-Ubuntu) MS-7529
> > [ 8483.157020] EIP: 0060:[<0200a8c0>] EFLAGS: 00010246 CPU: 0
> > [ 8483.157020] EIP is at 0x200a8c0
> > [ 8483.157020] EAX: ed0dec00 EBX: ed0dec00 ECX: 000000e9 EDX: 0200a8c0
> > [ 8483.157020] ESI: c04c7f95 EDI: 00000000 EBP: f1b21e60 ESP: f1b21e58
> > [ 8483.157020]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
> > [ 8483.157020] Process kclick (pid: 31116, ti=f1b20000 task=e6d172c0
> > task.ti=f1b20000)
> > [ 8483.157020] Stack:
> > [ 8483.157020]  c04be005 ed0dec00 f1b21e6c c04bdd50 ed0dec00 f1b21e80
> > c04bde50 ed0dec00
> > [ 8483.157020] <0> 00000000 f7001b40 f1b21ea4 c04c7f95 ed0de3c0 f6a68000
> > f8088380 f6a68000
> > [ 8483.157020] <0> f19d5b00 f7001b40 00000000 f1b21ed0 c04dcc25 ed0de474
> > f6a68000 00000000
> > [ 8483.157020] Call Trace:
> > [ 8483.157020]  [<c04be005>] ? skb_release_head_state+0x45/0xe0
> > [ 8483.157020]  [<c04bdd50>] ? __kfree_skb+0x10/0x90
> > [ 8483.157020]  [<c04bde50>] ? kfree_skb+0x40/0x80
> > [ 8483.157020]  [<c04c7f95>] ? dev_hard_start_xmit+0x215/0x240
> > [ 8483.157020]  [<c04dcc25>] ? sch_direct_xmit+0x105/0x170
> > [ 8483.157020]  [<c04cad6f>] ? dev_queue_xmit+0x37f/0x4b0
> > [ 8483.157020]  [<fb17c2cf>] ?
> > _ZN8ToDevice12queue_packetEP6PacketP12netdev_queue+0xef/0x1b0 [click]
> > [ 8483.157020]  [<fb19e948>] ? _ZN3Tee4pushEiP6Packet+0x68/0x70 [click]
> > [ 8483.157020]  [<fb17c485>] ? _ZN8ToDevice8run_taskEP4Task+0xf5/0x220
> > [click]
> > [ 8483.157020]  [<fb17770d>] ? _ZN10FromDevice8run_taskEP4Task+0x8d/0xe0
> > [click]
> > [ 8483.157020]  [<fb130e7a>] ? _ZN12RouterThread6driverEv+0x31a/0x580
> > [click]
> > [ 8483.157020]  [<fb1bbd2c>] ? _ZL11click_schedPv+0x10c/0x200 [click]
> > [ 8483.157020]  [<fb1bbc20>] ? _ZL11click_schedPv+0x0/0x200 [click]
> > [ 8483.157020]  [<c0104087>] ? kernel_thread_helper+0x7/0x10
> > [ 8483.157020] Code:  Bad EIP value.
> > [ 8483.157020] EIP: [<0200a8c0>] 0x200a8c0 SS:ESP 0068:f1b21e58
> > [ 8483.157020] CR2: 000000000200a8c0
> > [ 8483.392554] ---[ end trace 7fcecc4ba07683ce ]---
> > [ 8483.397171] Kernel panic - not syncing: Fatal exception in interrupt
> > [ 8483.403525] Pid: 31116, comm: kclick Tainted: G      D
> > 2.6.32-38-generic #83-Ubuntu
> > [ 8483.411434] Call Trace:
> > [ 8483.413887]  [<c058ea74>] ? printk+0x1d/0x21
> > [ 8483.418158]  [<c058e9aa>] panic+0x48/0xf5
> > [ 8483.422170]  [<c059211d>] oops_end+0xcd/0xd0
> > [ 8483.426445]  [<c012b9cc>] no_context+0xbc/0xe0
> > [ 8483.430891]  [<c012ba2c>] __bad_area_nosemaphore+0x3c/0x160
> > [ 8483.436464]  [<c0591433>] ? _read_unlock_bh+0x13/0x20
> > [ 8483.441520]  [<c012bb67>] bad_area_nosemaphore+0x17/0x20
> > [ 8483.446834]  [<c05938a6>] do_page_fault+0x2f6/0x3a0
> > [ 8483.451716]  [<c04c7f95>] ? dev_hard_start_xmit+0x215/0x240
> > [ 8483.457292]  [<c05935b0>] ? do_page_fault+0x0/0x3a0
> > [ 8483.462170]  [<c05915b3>] error_code+0x73/0x80
> > [ 8483.466614]  [<c04c7f95>] ? dev_hard_start_xmit+0x215/0x240
> > [ 8483.472323]  [<fb11007b>] ? _ZlsR11StringAccumRK9Timestamp+0xdb/0x380
> > [click]
> > [ 8483.479456]  [<c04be005>] ? skb_release_head_state+0x45/0xe0
> > [ 8483.485113]  [<c04bdd50>] __kfree_skb+0x10/0x90
> > [ 8483.489645]  [<c04bde50>] kfree_skb+0x40/0x80
> > [ 8483.494007]  [<c04c7f95>] dev_hard_start_xmit+0x215/0x240
> > [ 8483.499412]  [<c04dcc25>] sch_direct_xmit+0x105/0x170
> > [ 8483.504466]  [<c04cad6f>] dev_queue_xmit+0x37f/0x4b0
> > [ 8483.509590]  [<fb17c2cf>]
> > _ZN8ToDevice12queue_packetEP6PacketP12netdev_queue+0xef/0x1b0 [click]
> > [ 8483.518443]  [<fb19e948>] ? _ZN3Tee4pushEiP6Packet+0x68/0x70 [click]
> > [ 8483.524955]  [<fb17c485>] _ZN8ToDevice8run_taskEP4Task+0xf5/0x220
> > [click]
> > [ 8483.531899]  [<fb17770d>] ? _ZN10FromDevice8run_taskEP4Task+0x8d/0xe0
> > [click]
> > [ 8483.539171]  [<fb130e7a>] _ZN12RouterThread6driverEv+0x31a/0x580
> [click]
> > [ 8483.546023]  [<fb1bbd2c>] _ZL11click_schedPv+0x10c/0x200 [click]
> > [ 8483.552183]  [<fb1bbc20>] ? _ZL11click_schedPv+0x0/0x200 [click]
> > [ 8483.558190]  [<c0104087>] kernel_thread_helper+0x7/0x10
> > [ 8483.563418] [drm:drm_fb_helper_panic] *ERROR* panic occurred,
> switching
> > back to text console
> > [ 8483.567408] BUG: scheduling while atomic: kclick/31116/0x10000200
> > [ 8483.567408] Modules linked in: click proclikefs binfmt_misc
> > snd_hda_codec_realtek fbcon tileblit font bitblit softcursor vga16fb
> > vgastate snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss
> > snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi
> > snd_seq_midi_event snd_seq snd_timer snd_seq_device ppdev snd i915
> > drm_kms_helper parport_pc drm i2c_algo_bit video psmouse serio_raw
> > intel_agp agpgart soundcore output snd_page_alloc lp parport 8139too
> > floppy r8169 mii e1000e
> > [ 8483.567408] Pid: 31116, comm: kclick Tainted: G      D
> > 2.6.32-38-generic #83-Ubuntu
> > [ 8483.567408] Call Trace:
> > [ 8483.567408]  [<c013f6e2>] __schedule_bug+0x72/0x80
> > [ 8483.567408]  [<c058f2a4>] schedule+0x644/0x870
> > [ 8483.567408]  [<c0356211>] ? __const_udelay+0x31/0x40
> > [ 8483.567408]  [<c058f612>] _cond_resched+0x32/0x50
> > [ 8483.567408]  [<c01ffe30>] __kmalloc+0xc0/0x190
> > [ 8483.567408]  [<c012a958>] ? default_spin_lock_flags+0x8/0x10
> > [ 8483.567408]  [<f80e56f2>] ? T.813+0x12/0x20 [drm_kms_helper]
> > [ 8483.567408]  [<f80e56f2>] T.813+0x12/0x20 [drm_kms_helper]
> > [ 8483.567408]  [<f80e57e7>] drm_crtc_helper_set_config+0xe7/0x870
> > [drm_kms_helper]
> > [ 8483.567408]  [<f80e34cd>] drm_fb_helper_force_kernel_mode+0x4d/0x90
> > [drm_kms_helper]
> > [ 8483.567408]  [<f80e3574>] drm_fb_helper_panic+0x24/0x30
> [drm_kms_helper]
> > [ 8483.567408]  [<c0593993>] notifier_call_chain+0x43/0x60
> > [ 8483.567408]  [<c0593a02>] atomic_notifier_call_chain+0x22/0x30
> > [ 8483.567408]  [<c058e9ca>] panic+0x68/0xf5
> > [ 8483.567408]  [<c059211d>] oops_end+0xcd/0xd0
> > [ 8483.567408]  [<c012b9cc>] no_context+0xbc/0xe0
> > [ 8483.567408]  [<c012ba2c>] __bad_area_nosemaphore+0x3c/0x160
> > [ 8483.567408]  [<c0591433>] ? _read_unlock_bh+0x13/0x20
> > [ 8483.567408]  [<c012bb67>] bad_area_nosemaphore+0x17/0x20
> > [ 8483.567408]  [<c05938a6>] do_page_fault+0x2f6/0x3a0
> > [ 8483.567408]  [<c04c7f95>] ? dev_hard_start_xmit+0x215/0x240
> > [ 8483.567408]  [<c05935b0>] ? do_page_fault+0x0/0x3a0
> > [ 8483.567408]  [<c05915b3>] error_code+0x73/0x80
> > [ 8483.567408]  [<c04c7f95>] ? dev_hard_start_xmit+0x215/0x240
> > [ 8483.567408]  [<fb11007b>] ? _ZlsR11StringAccumRK9Timestamp+0xdb/0x380
> > [click]
> > [ 8483.567408]  [<c04be005>] ? skb_release_head_state+0x45/0xe0
> > [ 8483.567408]  [<c04bdd50>] __kfree_skb+0x10/0x90
> > [ 8483.567408]  [<c04bde50>] kfree_skb+0x40/0x80
> > [ 8483.567408]  [<c04c7f95>] dev_hard_start_xmit+0x215/0x240
> > [ 8483.567408]  [<c04dcc25>] sch_direct_xmit+0x105/0x170
> > [ 8483.567408]  [<c04cad6f>] dev_queue_xmit+0x37f/0x4b0
> > [ 8483.567408]  [<fb17c2cf>]
> > _ZN8ToDevice12queue_packetEP6PacketP12netdev_queue+0xef/0x1b0 [click]
> > [ 8483.567408]  [<fb19e948>] ? _ZN3Tee4pushEiP6Packet+0x68/0x70 [click]
> > [ 8483.567408]  [<fb17c485>] _ZN8ToDevice8run_taskEP4Task+0xf5/0x220
> > [click]
> > [ 8483.567408]  [<fb17770d>] ? _ZN10FromDevice8run_taskEP4Task+0x8d/0xe0
> > [click]
> > [ 8483.567408]  [<fb130e7a>] _ZN12RouterThread6driverEv+0x31a/0x580
> [click]
> > [ 8483.567408]  [<fb1bbd2c>] _ZL11click_schedPv+0x10c/0x200 [click]
> > [ 8483.567408]  [<fb1bbc20>] ? _ZL11click_schedPv+0x0/0x200 [click]
> > [ 8483.567408]  [<c0104087>] kernel_thread_helper+0x7/0x10
> > [ 8483.567408] NOHZ: local_softirq_pending 28a
> >
> >
> > ~Patrick
> >
> >
> >
> >
> > ------------------------------
> >
> > Message: 2
> > Date: Wed, 7 Mar 2012 10:44:20 +0530
> > From: udit kumar <[email protected]>
> > Subject: [Click] Problems in compiling Click on a virtual machine
> > To: [email protected]
> > Message-ID:
> >        <
> CAJmjoW+J33BNLhGfVgqU5X8+4_WWpCVSyUSjWJDn49FFGKVifw@mail.gmail.com
> > >
> > Content-Type: text/plain; charset=ISO-8859-1
> >
> > Hi,
> >
> > I am trying to install Click in kernel mode on a virtual machine using
> > VMware. But somehow it always fails. I just want to know if its possible
> to
> > do so? Also if someone has compiled Click in kernel mode for a virtual
> > machine then can you please share the harware and software specifications
> > used.
> >
> > Thanks & Regards,
> > Udit Kumar
> >
> >
> > ------------------------------
> >
> > _______________________________________________
> > click mailing list
> > [email protected]
> > https://amsterdam.lcs.mit.edu/mailman/listinfo/click
> >
> >
> > End of click Digest, Vol 105, Issue 2
> > *************************************
> >
> _______________________________________________
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>