* 4.5-rc4 kernel is failed to bootup on CN6880
@ 2016-02-20 1:12 Yang Shi
2016-02-20 1:15 ` David Daney
2016-02-22 12:43 ` Aaro Koskinen
0 siblings, 2 replies; 6+ messages in thread
From: Yang Shi @ 2016-02-20 1:12 UTC (permalink / raw)
To: david.daney; +Cc: linux-kernel, linux-mips
Hi David,
I tried to boot 4.5-rc4 kernel on my CN6880 board, but it is failed at
booting up secondary cores. The error is:
CPU31 revision is: 000d9101 (Cavium Octeon II)
SMP: Booting CPU32 (CoreId 32)...
Secondary boot timeout
I passed "numcores=32" in kernel commandline since there are 32 cores
ion CN6880. And, the bootloader information is as below:
U-Boot 2013.07 ( (U-BOOT build: 104, SDK version: 3.1.1-544),
svnversion: u-boot:107133M, exec:)-svn107117 (Build time: Oct 31 2014 -
19:39:37)
Skipping PCIe port 0 BIST, reset not done. (port not configured)
Skipping PCIe port 1 BIST, reset not done. (port not configured)
BIST check passed.
EBB6800 board revision major:2, minor:0, serial #: 2011-2.0-00120
OCTEON CN6880-AAP pass 1.1, Core clock: 1200 MHz, IO clock: 800 MHz, DDR
clock: 667 MHz (1334 Mhz DDR)
Base DRAM address used by u-boot: 0x20f000000, size: 0x1000000
DRAM: 8 GiB
Clearing DRAM...... done
NAND: 4096 MiB
Registered IDE device 0 from IDE bus:dev 0:0
Flash: 8 MiB
0:PCIe: Port 0 is unknown, skipping.
0:PCIe: Port 1 is unknown, skipping.
PCI console init succeeded, 1 consoles, 1024 bytes each
Net: octmgmt0, octeth0, octeth1, octeth2, octeth3
Bus 0: OK
Device 0: Model: CF 1GB Firm: 20071116 Ser#: TSS20037110113081057
Type: Hard Disk
Capacity: 967.6 MB = 0.9 GB (1981728 x 512)
USB0: USB EHCI 1.00
scanning bus 0 for devices... 1 USB Device(s) found
Type the command 'usb start' to scan for USB storage devices.
Any hint is appreciated.
Thanks,
Yang
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: 4.5-rc4 kernel is failed to bootup on CN6880
2016-02-20 1:12 4.5-rc4 kernel is failed to bootup on CN6880 Yang Shi
@ 2016-02-20 1:15 ` David Daney
2016-02-20 1:19 ` Yang Shi
2016-02-22 12:43 ` Aaro Koskinen
1 sibling, 1 reply; 6+ messages in thread
From: David Daney @ 2016-02-20 1:15 UTC (permalink / raw)
To: Yang Shi; +Cc: david.daney, linux-kernel, linux-mips
On 02/19/2016 05:12 PM, Yang Shi wrote:
> Hi David,
>
> I tried to boot 4.5-rc4 kernel on my CN6880 board, but it is failed at
> booting up secondary cores. The error is:
Have you had luck with any other kernel.org versions?
FWIW, I recently posed some patches that may help. I haven't recently
tested on cn68xx though, so I can't really say what it might be.
>
> CPU31 revision is: 000d9101 (Cavium Octeon II)
> SMP: Booting CPU32 (CoreId 32)...
> Secondary boot timeout
>
> I passed "numcores=32" in kernel commandline since there are 32 cores
> ion CN6880. And, the bootloader information is as below:
>
> U-Boot 2013.07 ( (U-BOOT build: 104, SDK version: 3.1.1-544),
> svnversion: u-boot:107133M, exec:)-svn107117 (Build time: Oct 31 2014 -
> 19:39:37)
>
> Skipping PCIe port 0 BIST, reset not done. (port not configured)
> Skipping PCIe port 1 BIST, reset not done. (port not configured)
> BIST check passed.
> EBB6800 board revision major:2, minor:0, serial #: 2011-2.0-00120
> OCTEON CN6880-AAP pass 1.1, Core clock: 1200 MHz, IO clock: 800 MHz, DDR
> clock: 667 MHz (1334 Mhz DDR)
> Base DRAM address used by u-boot: 0x20f000000, size: 0x1000000
> DRAM: 8 GiB
> Clearing DRAM...... done
> NAND: 4096 MiB
> Registered IDE device 0 from IDE bus:dev 0:0
> Flash: 8 MiB
> 0:PCIe: Port 0 is unknown, skipping.
> 0:PCIe: Port 1 is unknown, skipping.
> PCI console init succeeded, 1 consoles, 1024 bytes each
> Net: octmgmt0, octeth0, octeth1, octeth2, octeth3
> Bus 0: OK
> Device 0: Model: CF 1GB Firm: 20071116 Ser#: TSS20037110113081057
> Type: Hard Disk
> Capacity: 967.6 MB = 0.9 GB (1981728 x 512)
> USB0: USB EHCI 1.00
> scanning bus 0 for devices... 1 USB Device(s) found
> Type the command 'usb start' to scan for USB storage devices.
>
>
> Any hint is appreciated.
>
> Thanks,
> Yang
>
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: 4.5-rc4 kernel is failed to bootup on CN6880
2016-02-20 1:15 ` David Daney
@ 2016-02-20 1:19 ` Yang Shi
0 siblings, 0 replies; 6+ messages in thread
From: Yang Shi @ 2016-02-20 1:19 UTC (permalink / raw)
To: David Daney; +Cc: david.daney, linux-kernel, linux-mips
On 2/19/2016 5:15 PM, David Daney wrote:
> On 02/19/2016 05:12 PM, Yang Shi wrote:
>> Hi David,
>>
>> I tried to boot 4.5-rc4 kernel on my CN6880 board, but it is failed at
>> booting up secondary cores. The error is:
>
> Have you had luck with any other kernel.org versions?
Not tried yet. I will try to bisect it.
>
> FWIW, I recently posed some patches that may help. I haven't recently
> tested on cn68xx though, so I can't really say what it might be.
Do you mean the change in CN78xx support patchset?
Thanks,
Yang
>
>
>>
>> CPU31 revision is: 000d9101 (Cavium Octeon II)
>> SMP: Booting CPU32 (CoreId 32)...
>> Secondary boot timeout
>>
>> I passed "numcores=32" in kernel commandline since there are 32 cores
>> ion CN6880. And, the bootloader information is as below:
>>
>> U-Boot 2013.07 ( (U-BOOT build: 104, SDK version: 3.1.1-544),
>> svnversion: u-boot:107133M, exec:)-svn107117 (Build time: Oct 31 2014 -
>> 19:39:37)
>>
>> Skipping PCIe port 0 BIST, reset not done. (port not configured)
>> Skipping PCIe port 1 BIST, reset not done. (port not configured)
>> BIST check passed.
>> EBB6800 board revision major:2, minor:0, serial #: 2011-2.0-00120
>> OCTEON CN6880-AAP pass 1.1, Core clock: 1200 MHz, IO clock: 800 MHz, DDR
>> clock: 667 MHz (1334 Mhz DDR)
>> Base DRAM address used by u-boot: 0x20f000000, size: 0x1000000
>> DRAM: 8 GiB
>> Clearing DRAM...... done
>> NAND: 4096 MiB
>> Registered IDE device 0 from IDE bus:dev 0:0
>> Flash: 8 MiB
>> 0:PCIe: Port 0 is unknown, skipping.
>> 0:PCIe: Port 1 is unknown, skipping.
>> PCI console init succeeded, 1 consoles, 1024 bytes each
>> Net: octmgmt0, octeth0, octeth1, octeth2, octeth3
>> Bus 0: OK
>> Device 0: Model: CF 1GB Firm: 20071116 Ser#: TSS20037110113081057
>> Type: Hard Disk
>> Capacity: 967.6 MB = 0.9 GB (1981728 x 512)
>> USB0: USB EHCI 1.00
>> scanning bus 0 for devices... 1 USB Device(s) found
>> Type the command 'usb start' to scan for USB storage devices.
>>
>>
>> Any hint is appreciated.
>>
>> Thanks,
>> Yang
>>
>
>
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: 4.5-rc4 kernel is failed to bootup on CN6880
2016-02-20 1:12 4.5-rc4 kernel is failed to bootup on CN6880 Yang Shi
2016-02-20 1:15 ` David Daney
@ 2016-02-22 12:43 ` Aaro Koskinen
2016-02-22 19:15 ` Yang Shi
1 sibling, 1 reply; 6+ messages in thread
From: Aaro Koskinen @ 2016-02-22 12:43 UTC (permalink / raw)
To: Yang Shi, david.daney; +Cc: linux-kernel, linux-mips
Hi,
On Fri, Feb 19, 2016 at 05:12:41PM -0800, Yang Shi wrote:
> I tried to boot 4.5-rc4 kernel on my CN6880 board, but it is failed at
> booting up secondary cores. The error is:
With v4.5-rc5, EBB6800 is booting fine:
[ 0.000000] CPU0 revision is: 000d9108 (Cavium Octeon II)
[...]
[ 2286.273935] SMP: Booting CPU01 (CoreId 1)...
[ 2286.278201] CPU1 revision is: 000d9108 (Cavium Octeon II)
[...]
[ 2287.214953] SMP: Booting CPU31 (CoreId 31)...
[ 2287.224668] CPU31 revision is: 000d9108 (Cavium Octeon II)
[ 2287.224865] Brought up 32 CPUs
> CPU31 revision is: 000d9101 (Cavium Octeon II)
> SMP: Booting CPU32 (CoreId 32)...
> Secondary boot timeout
>
> I passed "numcores=32" in kernel commandline since there are 32 cores ion
> CN6880.
You shouldn't have CPU32 in that case, the numbering starts from zero.
Also the coremask is 32-bit.
I can reproduce your issue with CONFIG_NR_CPUS=64. Possibly this code
is incorrect for NR_CPUS bigger than 32:
/* The present CPUs get the lowest CPU numbers. */
cpus = 1;
for (id = 0; id < NR_CPUS; id++) {
if ((id != coreid) && (core_mask & (1 << id))) {
set_cpu_possible(cpus, true);
set_cpu_present(cpus, true);
What CONFIG_NR_CPUS did you use?
A.
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: 4.5-rc4 kernel is failed to bootup on CN6880
2016-02-22 12:43 ` Aaro Koskinen
@ 2016-02-22 19:15 ` Yang Shi
2016-02-22 20:56 ` David Daney
0 siblings, 1 reply; 6+ messages in thread
From: Yang Shi @ 2016-02-22 19:15 UTC (permalink / raw)
To: Aaro Koskinen, david.daney; +Cc: linux-kernel, linux-mips
On 2/22/2016 4:43 AM, Aaro Koskinen wrote:
> Hi,
>
> On Fri, Feb 19, 2016 at 05:12:41PM -0800, Yang Shi wrote:
>> I tried to boot 4.5-rc4 kernel on my CN6880 board, but it is failed at
>> booting up secondary cores. The error is:
> With v4.5-rc5, EBB6800 is booting fine:
>
> [ 0.000000] CPU0 revision is: 000d9108 (Cavium Octeon II)
> [...]
> [ 2286.273935] SMP: Booting CPU01 (CoreId 1)...
> [ 2286.278201] CPU1 revision is: 000d9108 (Cavium Octeon II)
> [...]
> [ 2287.214953] SMP: Booting CPU31 (CoreId 31)...
> [ 2287.224668] CPU31 revision is: 000d9108 (Cavium Octeon II)
> [ 2287.224865] Brought up 32 CPUs
>
>> CPU31 revision is: 000d9101 (Cavium Octeon II)
>> SMP: Booting CPU32 (CoreId 32)...
>> Secondary boot timeout
>>
>> I passed "numcores=32" in kernel commandline since there are 32 cores ion
>> CN6880.
> You shouldn't have CPU32 in that case, the numbering starts from zero.
> Also the coremask is 32-bit.
>
> I can reproduce your issue with CONFIG_NR_CPUS=64. Possibly this code
> is incorrect for NR_CPUS bigger than 32:
>
> /* The present CPUs get the lowest CPU numbers. */
> cpus = 1;
> for (id = 0; id < NR_CPUS; id++) {
> if ((id != coreid) && (core_mask & (1 << id))) {
> set_cpu_possible(cpus, true);
> set_cpu_present(cpus, true);
>
> What CONFIG_NR_CPUS did you use?
Thanks. I did have 48 NR_CPUS set. It works when I changed it to 32.
I think the problem is core_mask is 32 bit. But when NR_CPUS > 32, in
"core_mask & (1 << id)" core_mask will be sign extended, then the
statement will return non-zero all the time.
Yang
>
> A.
>
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: 4.5-rc4 kernel is failed to bootup on CN6880
2016-02-22 19:15 ` Yang Shi
@ 2016-02-22 20:56 ` David Daney
0 siblings, 0 replies; 6+ messages in thread
From: David Daney @ 2016-02-22 20:56 UTC (permalink / raw)
To: Yang Shi; +Cc: Aaro Koskinen, david.daney, linux-kernel, linux-mips
On 02/22/2016 11:15 AM, Yang Shi wrote:
> On 2/22/2016 4:43 AM, Aaro Koskinen wrote:
>> Hi,
>>
>> On Fri, Feb 19, 2016 at 05:12:41PM -0800, Yang Shi wrote:
>>> I tried to boot 4.5-rc4 kernel on my CN6880 board, but it is failed at
>>> booting up secondary cores. The error is:
>> With v4.5-rc5, EBB6800 is booting fine:
>>
>> [ 0.000000] CPU0 revision is: 000d9108 (Cavium Octeon II)
>> [...]
>> [ 2286.273935] SMP: Booting CPU01 (CoreId 1)...
>> [ 2286.278201] CPU1 revision is: 000d9108 (Cavium Octeon II)
>> [...]
>> [ 2287.214953] SMP: Booting CPU31 (CoreId 31)...
>> [ 2287.224668] CPU31 revision is: 000d9108 (Cavium Octeon II)
>> [ 2287.224865] Brought up 32 CPUs
>>
>>> CPU31 revision is: 000d9101 (Cavium Octeon II)
>>> SMP: Booting CPU32 (CoreId 32)...
>>> Secondary boot timeout
>>>
>>> I passed "numcores=32" in kernel commandline since there are 32 cores
>>> ion
>>> CN6880.
>> You shouldn't have CPU32 in that case, the numbering starts from zero.
>> Also the coremask is 32-bit.
>>
>> I can reproduce your issue with CONFIG_NR_CPUS=64. Possibly this code
>> is incorrect for NR_CPUS bigger than 32:
>>
>> /* The present CPUs get the lowest CPU numbers. */
>> cpus = 1;
>> for (id = 0; id < NR_CPUS; id++) {
>> if ((id != coreid) && (core_mask & (1 << id))) {
>> set_cpu_possible(cpus, true);
>> set_cpu_present(cpus, true);
>>
>> What CONFIG_NR_CPUS did you use?
>
> Thanks. I did have 48 NR_CPUS set. It works when I changed it to 32.
>
> I think the problem is core_mask is 32 bit. But when NR_CPUS > 32, in
> "core_mask & (1 << id)" core_mask will be sign extended, then the
> statement will return non-zero all the time.
>
That is correct, and perhaps not coincidentally, the reason I have
already submitted patches to fix this.
David.
> Yang
>
>>
>> A.
>>
>
>
^ permalink raw reply [flat|nested] 6+ messages in thread
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2016-02-20 1:12 4.5-rc4 kernel is failed to bootup on CN6880 Yang Shi
2016-02-20 1:15 ` David Daney
2016-02-20 1:19 ` Yang Shi
2016-02-22 12:43 ` Aaro Koskinen
2016-02-22 19:15 ` Yang Shi
2016-02-22 20:56 ` David Daney
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