| Message ID | CAPtdW140ECgKXJzV-TYCMfk+q8j68aJHOYeAFtzi77QE6y7=FQ@mail.gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Mon, Jan 11, 2016 at 12:57:27AM +0530, Harmandeep Kaur wrote: > Hi, > > I tried to modify and compile some of Xen 4.7's code > (cloned from git clone git://xenbits.xen.org/xen.git) > and even with a very minor change (patch included at last) > my xen failed to boot. It stucks at black blank screen after > showing some xen logs. What is on your Linux command line? Do you have 'console=hvc0' ? > > By adding "vga=text-80x80,keep" to the grub before booting > xen., infinite loop of text > "(XEN) traps.c:3290: GPF (0000): ffff82d0801af4d5 -> ffff82d080240e5a" > appears. > > I tried to compile and boot xen reverting the change, but > same issue still exists. > > Also I tried to setup serial console but my output is garbled. > More info on it here, > http://lists.xenproject.org/archives/html/xen-devel/2015-12/msg02045.html > > I tried different software (cu, gtkterm), different baud rates, > different serial-USB cable and stopping modemmanager, > but no luck. How did you set the baudrate? I usually do 'screen /dev/ttyUSB0 115200 cs8' ? > > I am using i3-6100 processor, if that info is needed.I will > appreciate any help. dmesg | grep tty and lspci could also help? > > Regards, > Harmandeep Kaur > Outreachy Intern > > -----------------------------------------------PATCH--------------------------------------------- > >From c814c4ac0028bdef0082561ad6cd69570502c3ba Mon Sep 17 00:00:00 2001 > From: Harmandeep Kaur <write.harmandeep@gmail.com> > Date: Tue, 29 Dec 2015 22:23:21 +0530 > Subject: [PATCH] First mod > > Signed-off-by: Harmandeep Kaur <write.harmandeep@gmail.com> > --- > xen/common/sched_credit.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/xen/common/sched_credit.c b/xen/common/sched_credit.c > index 0dce790..b395501 100644 > --- a/xen/common/sched_credit.c > +++ b/xen/common/sched_credit.c > @@ -1148,6 +1148,8 @@ csched_dom_init(const struct scheduler *ops, > struct domain *dom) > { > struct csched_dom *sdom; > > +printk("XXX Hello, this is my first mod :) \n"); > + > if ( is_idle_domain(dom) ) > return 0; > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xen.org > http://lists.xen.org/xen-devel
On Mon, Jan 11, 2016 at 8:23 PM, Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> wrote: > On Mon, Jan 11, 2016 at 12:57:27AM +0530, Harmandeep Kaur wrote: >> Hi, >> >> I tried to modify and compile some of Xen 4.7's code >> (cloned from git clone git://xenbits.xen.org/xen.git) >> and even with a very minor change (patch included at last) >> my xen failed to boot. It stucks at black blank screen after >> showing some xen logs. > > What is on your Linux command line? Do you have 'console=hvc0' ? my /etc/defaults/grub http://paste2.org/BkOOOskh my /boot/grub/grub.cfg http://paste2.org/Ks49MZEh > >> >> By adding "vga=text-80x80,keep" to the grub before booting >> xen., infinite loop of text >> "(XEN) traps.c:3290: GPF (0000): ffff82d0801af4d5 -> ffff82d080240e5a" >> appears. >> >> I tried to compile and boot xen reverting the change, but >> same issue still exists. >> >> Also I tried to setup serial console but my output is garbled. >> More info on it here, >> http://lists.xenproject.org/archives/html/xen-devel/2015-12/msg02045.html >> >> I tried different software (cu, gtkterm), different baud rates, >> different serial-USB cable and stopping modemmanager, >> but no luck. > > How did you set the baudrate? I usually do 'screen /dev/ttyUSB0 115200 cs8' > ? I also tried the same with screen just without the cs8 keyword. >> >> I am using i3-6100 processor, if that info is needed.I will >> appreciate any help. > > dmesg | grep tty $ dmesg | grep tty [ 0.000000] console [tty0] enabled [ 4.537790] systemd[1]: Created slice system-getty.slice. [11542.458553] usb 1-4: pl2303 converter now attache > and lspci $ lspci 00:00.0 Host bridge: Intel Corporation 3rd Gen Core processor DRAM Controller (rev 09) 00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor PCI Express Root Port (rev 09) 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) 00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller (rev 04) 00:16.0 Communication controller: Intel Corporation 7 Series/C210 Series Chipset Family MEI Controller #1 (rev 04) 00:1a.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2 (rev 04) 00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller (rev 04) 00:1c.0 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 1 (rev c4) 00:1c.3 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 4 (rev c4) 00:1d.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1 (rev 04) 00:1f.0 ISA bridge: Intel Corporation HM76 Express Chipset LPC Controller (rev 04) 00:1f.2 SATA controller: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] (rev 04) 00:1f.3 SMBus: Intel Corporation 7 Series/C210 Series Chipset Family SMBus Controller (rev 04) 01:00.0 Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Mars [Radeon HD 8670A/8670M/8750M] (rev ff) 02:00.0 Network controller: Qualcomm Atheros AR9485 Wireless Network Adapter (rev 01) 03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06) > could also help? > >> >> Regards, >> Harmandeep Kaur >> Outreachy Intern >> >> -----------------------------------------------PATCH--------------------------------------------- >> >From c814c4ac0028bdef0082561ad6cd69570502c3ba Mon Sep 17 00:00:00 2001 >> From: Harmandeep Kaur <write.harmandeep@gmail.com> >> Date: Tue, 29 Dec 2015 22:23:21 +0530 >> Subject: [PATCH] First mod >> >> Signed-off-by: Harmandeep Kaur <write.harmandeep@gmail.com> >> --- >> xen/common/sched_credit.c | 2 ++ >> 1 file changed, 2 insertions(+) >> >> diff --git a/xen/common/sched_credit.c b/xen/common/sched_credit.c >> index 0dce790..b395501 100644 >> --- a/xen/common/sched_credit.c >> +++ b/xen/common/sched_credit.c >> @@ -1148,6 +1148,8 @@ csched_dom_init(const struct scheduler *ops, >> struct domain *dom) >> { >> struct csched_dom *sdom; >> >> +printk("XXX Hello, this is my first mod :) \n"); >> + >> if ( is_idle_domain(dom) ) >> return 0; >> >> _______________________________________________ >> Xen-devel mailing list >> Xen-devel@lists.xen.org >> http://lists.xen.org/xen-devel
On Mon, Jan 11, 2016 at 10:56:07PM +0530, Harmandeep Kaur wrote: > On Mon, Jan 11, 2016 at 8:23 PM, Konrad Rzeszutek Wilk > <konrad.wilk@oracle.com> wrote: > > On Mon, Jan 11, 2016 at 12:57:27AM +0530, Harmandeep Kaur wrote: > >> Hi, > >> > >> I tried to modify and compile some of Xen 4.7's code > >> (cloned from git clone git://xenbits.xen.org/xen.git) > >> and even with a very minor change (patch included at last) > >> my xen failed to boot. It stucks at black blank screen after > >> showing some xen logs. > > > > What is on your Linux command line? Do you have 'console=hvc0' ? > my /etc/defaults/grub http://paste2.org/BkOOOskh > my /boot/grub/grub.cfg http://paste2.org/Ks49MZEh > > > >> > >> By adding "vga=text-80x80,keep" to the grub before booting > >> xen., infinite loop of text > >> "(XEN) traps.c:3290: GPF (0000): ffff82d0801af4d5 -> ffff82d080240e5a" > >> appears. > >> > >> I tried to compile and boot xen reverting the change, but > >> same issue still exists. > >> > >> Also I tried to setup serial console but my output is garbled. > >> More info on it here, > >> http://lists.xenproject.org/archives/html/xen-devel/2015-12/msg02045.html > >> > >> I tried different software (cu, gtkterm), different baud rates, > >> different serial-USB cable and stopping modemmanager, > >> but no luck. > > > > How did you set the baudrate? I usually do 'screen /dev/ttyUSB0 115200 cs8' > > ? > > I also tried the same with screen just without the cs8 keyword. > > >> > >> I am using i3-6100 processor, if that info is needed.I will > >> appreciate any help. > > > > dmesg | grep tty > > $ dmesg | grep tty > [ 0.000000] console [tty0] enabled > [ 4.537790] systemd[1]: Created slice system-getty.slice. > [11542.458553] usb 1-4: pl2303 converter now attache This is on your box with the USB dongle. I meant the other one. Maybe we should step back a bit. On the machine on which you want to install Xen - does it work if you install say Fedora Core 23 and after installing, you do 'yum install xen' ? Can you boot with that? Then at least we will know whether an packaged version of Xen works on your machine.
On Mon, Jan 11, 2016 at 11:00 PM, Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> wrote: > On Mon, Jan 11, 2016 at 10:56:07PM +0530, Harmandeep Kaur wrote: >> On Mon, Jan 11, 2016 at 8:23 PM, Konrad Rzeszutek Wilk >> <konrad.wilk@oracle.com> wrote: >> > On Mon, Jan 11, 2016 at 12:57:27AM +0530, Harmandeep Kaur wrote: >> >> Hi, >> >> >> >> I tried to modify and compile some of Xen 4.7's code >> >> (cloned from git clone git://xenbits.xen.org/xen.git) >> >> and even with a very minor change (patch included at last) >> >> my xen failed to boot. It stucks at black blank screen after >> >> showing some xen logs. >> > >> > What is on your Linux command line? Do you have 'console=hvc0' ? >> my /etc/defaults/grub http://paste2.org/BkOOOskh >> my /boot/grub/grub.cfg http://paste2.org/Ks49MZEh >> > >> >> >> >> By adding "vga=text-80x80,keep" to the grub before booting >> >> xen., infinite loop of text >> >> "(XEN) traps.c:3290: GPF (0000): ffff82d0801af4d5 -> ffff82d080240e5a" >> >> appears. >> >> >> >> I tried to compile and boot xen reverting the change, but >> >> same issue still exists. >> >> >> >> Also I tried to setup serial console but my output is garbled. >> >> More info on it here, >> >> http://lists.xenproject.org/archives/html/xen-devel/2015-12/msg02045.html >> >> >> >> I tried different software (cu, gtkterm), different baud rates, >> >> different serial-USB cable and stopping modemmanager, >> >> but no luck. >> > >> > How did you set the baudrate? I usually do 'screen /dev/ttyUSB0 115200 cs8' >> > ? >> >> I also tried the same with screen just without the cs8 keyword. >> >> >> >> >> I am using i3-6100 processor, if that info is needed.I will >> >> appreciate any help. >> > >> > dmesg | grep tty >> >> $ dmesg | grep tty >> [ 0.000000] console [tty0] enabled >> [ 4.537790] systemd[1]: Created slice system-getty.slice. >> [11542.458553] usb 1-4: pl2303 converter now attache > > > This is on your box with the USB dongle. I meant the other one. > here it is $ dmesg | grep tty [ 0.000000] console [tty0] enabled [ 0.786850] 00:04: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A > Maybe we should step back a bit. On the machine on which you > want to install Xen - does it work if you install say > Fedora Core 23 and after installing, you do 'yum install xen' ? > Can you boot with that? Then at least we will know whether an > packaged version of Xen works on your machine. Yes, it works. I tried that with xen 4.5 on Ubuntu 15.10. Also, even my compiled version(4.7) used to run before my modification.
On Mon, Jan 11, 2016 at 11:15:43PM +0530, Harmandeep Kaur wrote: > On Mon, Jan 11, 2016 at 11:00 PM, Konrad Rzeszutek Wilk > <konrad.wilk@oracle.com> wrote: > > On Mon, Jan 11, 2016 at 10:56:07PM +0530, Harmandeep Kaur wrote: > >> On Mon, Jan 11, 2016 at 8:23 PM, Konrad Rzeszutek Wilk > >> <konrad.wilk@oracle.com> wrote: > >> > On Mon, Jan 11, 2016 at 12:57:27AM +0530, Harmandeep Kaur wrote: > >> >> Hi, > >> >> > >> >> I tried to modify and compile some of Xen 4.7's code > >> >> (cloned from git clone git://xenbits.xen.org/xen.git) > >> >> and even with a very minor change (patch included at last) > >> >> my xen failed to boot. It stucks at black blank screen after > >> >> showing some xen logs. > >> > > >> > What is on your Linux command line? Do you have 'console=hvc0' ? > >> my /etc/defaults/grub http://paste2.org/BkOOOskh > >> my /boot/grub/grub.cfg http://paste2.org/Ks49MZEh > >> > > >> >> > >> >> By adding "vga=text-80x80,keep" to the grub before booting > >> >> xen., infinite loop of text > >> >> "(XEN) traps.c:3290: GPF (0000): ffff82d0801af4d5 -> ffff82d080240e5a" > >> >> appears. > >> >> > >> >> I tried to compile and boot xen reverting the change, but > >> >> same issue still exists. > >> >> > >> >> Also I tried to setup serial console but my output is garbled. > >> >> More info on it here, > >> >> http://lists.xenproject.org/archives/html/xen-devel/2015-12/msg02045.html > >> >> > >> >> I tried different software (cu, gtkterm), different baud rates, > >> >> different serial-USB cable and stopping modemmanager, > >> >> but no luck. > >> > > >> > How did you set the baudrate? I usually do 'screen /dev/ttyUSB0 115200 cs8' > >> > ? > >> > >> I also tried the same with screen just without the cs8 keyword. > >> > >> >> > >> >> I am using i3-6100 processor, if that info is needed.I will > >> >> appreciate any help. > >> > > >> > dmesg | grep tty > >> > >> $ dmesg | grep tty > >> [ 0.000000] console [tty0] enabled > >> [ 4.537790] systemd[1]: Created slice system-getty.slice. > >> [11542.458553] usb 1-4: pl2303 converter now attache > > > > > > This is on your box with the USB dongle. I meant the other one. > > > here it is > $ dmesg | grep tty > [ 0.000000] console [tty0] enabled > [ 0.786850] 00:04: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) > is a 16550A > > > Maybe we should step back a bit. On the machine on which you > > want to install Xen - does it work if you install say > > Fedora Core 23 and after installing, you do 'yum install xen' ? > > Can you boot with that? Then at least we will know whether an > > packaged version of Xen works on your machine. > > Yes, it works. I tried that with xen 4.5 on Ubuntu 15.10. > Also, even my compiled version(4.7) used to run before > my modification. OK, so I would suggest you try again with the serial console but using the non-modified hypervisor version. See if you can get the serial to work. I would suggest you use screen as the other (cu, minicons) - I had issues with them with USB devices. While screen also allows you to log them. And do please check that you have 'console=com1 com1=115200,8n1 loglvl=all' on your Xen command line. And on Linux 'console=hvc0'. Once you have the serial working with the un-modified version I would try the modified and see where it gets stuck.
On Mon, Jan 11, 2016 at 11:36 PM, Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> wrote: > On Mon, Jan 11, 2016 at 11:15:43PM +0530, Harmandeep Kaur wrote: >> On Mon, Jan 11, 2016 at 11:00 PM, Konrad Rzeszutek Wilk >> <konrad.wilk@oracle.com> wrote: >> > On Mon, Jan 11, 2016 at 10:56:07PM +0530, Harmandeep Kaur wrote: >> >> On Mon, Jan 11, 2016 at 8:23 PM, Konrad Rzeszutek Wilk >> >> <konrad.wilk@oracle.com> wrote: >> >> > On Mon, Jan 11, 2016 at 12:57:27AM +0530, Harmandeep Kaur wrote: >> >> >> Hi, >> >> >> >> >> >> I tried to modify and compile some of Xen 4.7's code >> >> >> (cloned from git clone git://xenbits.xen.org/xen.git) >> >> >> and even with a very minor change (patch included at last) >> >> >> my xen failed to boot. It stucks at black blank screen after >> >> >> showing some xen logs. >> >> > >> >> > What is on your Linux command line? Do you have 'console=hvc0' ? >> >> my /etc/defaults/grub http://paste2.org/BkOOOskh >> >> my /boot/grub/grub.cfg http://paste2.org/Ks49MZEh >> >> > >> >> >> >> >> >> By adding "vga=text-80x80,keep" to the grub before booting >> >> >> xen., infinite loop of text >> >> >> "(XEN) traps.c:3290: GPF (0000): ffff82d0801af4d5 -> ffff82d080240e5a" >> >> >> appears. >> >> >> >> >> >> I tried to compile and boot xen reverting the change, but >> >> >> same issue still exists. >> >> >> >> >> >> Also I tried to setup serial console but my output is garbled. >> >> >> More info on it here, >> >> >> http://lists.xenproject.org/archives/html/xen-devel/2015-12/msg02045.html >> >> >> >> >> >> I tried different software (cu, gtkterm), different baud rates, >> >> >> different serial-USB cable and stopping modemmanager, >> >> >> but no luck. >> >> > >> >> > How did you set the baudrate? I usually do 'screen /dev/ttyUSB0 115200 cs8' >> >> > ? >> >> >> >> I also tried the same with screen just without the cs8 keyword. >> >> >> >> >> >> >> >> I am using i3-6100 processor, if that info is needed.I will >> >> >> appreciate any help. >> >> > >> >> > dmesg | grep tty >> >> >> >> $ dmesg | grep tty >> >> [ 0.000000] console [tty0] enabled >> >> [ 4.537790] systemd[1]: Created slice system-getty.slice. >> >> [11542.458553] usb 1-4: pl2303 converter now attache >> > >> > >> > This is on your box with the USB dongle. I meant the other one. >> > >> here it is >> $ dmesg | grep tty >> [ 0.000000] console [tty0] enabled >> [ 0.786850] 00:04: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) >> is a 16550A >> >> > Maybe we should step back a bit. On the machine on which you >> > want to install Xen - does it work if you install say >> > Fedora Core 23 and after installing, you do 'yum install xen' ? >> > Can you boot with that? Then at least we will know whether an >> > packaged version of Xen works on your machine. >> >> Yes, it works. I tried that with xen 4.5 on Ubuntu 15.10. >> Also, even my compiled version(4.7) used to run before >> my modification. > > OK, so I would suggest you try again with the serial console but > using the non-modified hypervisor version. See if you can get the serial to work. Tried that. Still same issue. Maybe hardware is malfunctioning. > I would suggest you use screen as the other (cu, minicons) - I had issues > with them with USB devices. While screen also allows you to log them. Tried cu and gtkterm > And do please check that you have 'console=com1 com1=115200,8n1 loglvl=all' on > your Xen command line. And on Linux 'console=hvc0'. Checked. All set. > Once you have the serial working with the un-modified version I would > try the modified and see where it gets stuck. I will get getting new cables. See if new ones solve the issue. Thanks for the help. Regards, Harmandeep Kaur
diff --git a/xen/common/sched_credit.c b/xen/common/sched_credit.c index 0dce790..b395501 100644 --- a/xen/common/sched_credit.c +++ b/xen/common/sched_credit.c @@ -1148,6 +1148,8 @@ csched_dom_init(const struct scheduler *ops, struct domain *dom) { struct csched_dom *sdom; +printk("XXX Hello, this is my first mod :) \n"); + if ( is_idle_domain(dom) ) return 0;