* [v5.4.28-rt19] ARM64: nfs boot issues
@ 2020-04-01 15:06 Grygorii Strashko
2020-04-03 11:22 ` Grygorii Strashko
0 siblings, 1 reply; 3+ messages in thread
From: Grygorii Strashko @ 2020-04-01 15:06 UTC (permalink / raw)
To: linux-rt-users, linux-kernel; +Cc: Sebastian Andrzej Siewior, Nori, Sekhar
Hi All,
We now observe NFS boot issues with TI RT Kernel (last merged tag v5.4.28-rt19) on TI (ARM64) AM654x/J721E platforms.
It's just stack (100%) silently right after Kernel init (log1) or in the middle of the boot (log2).
I'm trying to investigate an issue and I'd like to ask if anybody else observed the same?
Few notes:
- I can not test clear rt-devel/linux-5.4.y-rt as above TI platform not fully supported there
- ARM32 platforms not affected
- Disabling CONFIG_PREEMPT_RT=n with CONFIG_PREEMPT=y makes NFS boot work again
- non RT Kernel has no issues
NFS configuration:
rw rootfstype=nfs root=/dev/nfs rw nfsroot=192.168.0.110:/mnt/am65xx-evm,nolock,v3,tcp,rsize=4096,wsize=4096 ip=dhcp
===== Log1:
[ 13.423029] 000: am65-cpsw-nuss 46000000.ethernet eth0: Link is Up - 100Mbps/Full - flow control off
[ 13.449187] 003: Sending DHCP requests .
[ 13.457269] 002: ,
[ 13.965284] 001: OK
[ 13.965769] 001: IP-Config: Got DHCP answer from 192.168.0.1, my address is 192.168.0.105
[ 13.965788] 001: IP-Config: Complete:
[ 13.965794] 001: device=eth0, hwaddr=f4:84:4c:eb:a0:00, ipaddr=192.168.0.105, mask=255.255.255.0, gw=192.168.0.1
[ 13.965804] 001: host=192.168.0.105, domain=, nis-domain=(none)
[ 13.965814] 001: bootserver=0.0.0.0, rootserver=192.168.0.110, rootpath=
[ 13.965821] 001: nameserver0=192.168.0.1, nameserver1=0.0.0.0
[ 13.999107] 001: ALSA device list:
[ 13.999725] 001: No soundcards found.
[ 14.121815] 001: VFS: Mounted root (nfs filesystem) on device 0:21.
[ 14.126072] 001: devtmpfs: mounted
[ 14.139110] 001: Freeing unused kernel memory: 2688K
[ 14.150126] 000: Run /sbin/init as init process
[ 195.694278] 002: nfs: server 192.168.0.110 not responding, still trying
[ 195.694314] 003: nfs: server 192.168.0.110 not responding, still trying
[ 195.694875] 000: nfs: server 192.168.0.110 not responding, still trying
[ 195.694921] 003: nfs: server 192.168.0.110 not responding, still trying
^^^
===== Log2:
[ OK ] Stopped Network Time Synchronization.
Starting Network Time Synchronization...
[ OK ] Found device /dev/ttyS2.
[ OK ] Started Network Service.
[FAILED] Failed to start Network Time Synchronization.
See 'systemctl status systemd-timesyncd.service' for details.
[ 97.141595] 000: sysrq: This sysrq operation is disabled.
[ 191.511935] 001: nfs: server 192.168.0.110 not responding, still trying
[ 191.511995] 003: nfs: server 192.168.0.110 not responding, still trying
[ 191.512001] 002: nfs: server 192.168.0.110 not responding, still trying
^^^
--
Best regards,
grygorii
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [v5.4.28-rt19] ARM64: nfs boot issues
2020-04-01 15:06 [v5.4.28-rt19] ARM64: nfs boot issues Grygorii Strashko
@ 2020-04-03 11:22 ` Grygorii Strashko
2020-04-03 16:36 ` Sebastian Andrzej Siewior
0 siblings, 1 reply; 3+ messages in thread
From: Grygorii Strashko @ 2020-04-03 11:22 UTC (permalink / raw)
To: linux-rt-users, linux-kernel; +Cc: Sebastian Andrzej Siewior, Nori, Sekhar
On 01/04/2020 18:06, Grygorii Strashko wrote:
> Hi All,
>
> We now observe NFS boot issues with TI RT Kernel (last merged tag v5.4.28-rt19) on TI (ARM64) AM654x/J721E platforms.
> It's just stack (100%) silently right after Kernel init (log1) or in the middle of the boot (log2).
>
> I'm trying to investigate an issue and I'd like to ask if anybody else observed the same?
>
Sorry for disturbing you it was IRQ driver issue.
--
Best regards,
grygorii
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [v5.4.28-rt19] ARM64: nfs boot issues
2020-04-03 11:22 ` Grygorii Strashko
@ 2020-04-03 16:36 ` Sebastian Andrzej Siewior
0 siblings, 0 replies; 3+ messages in thread
From: Sebastian Andrzej Siewior @ 2020-04-03 16:36 UTC (permalink / raw)
To: Grygorii Strashko; +Cc: linux-rt-users, linux-kernel, Nori, Sekhar
On 2020-04-03 14:22:27 [+0300], Grygorii Strashko wrote:
> Sorry for disturbing you it was IRQ driver issue.
Thank you for the update.
Sebastian
^ permalink raw reply [flat|nested] 3+ messages in thread
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2020-04-01 15:06 [v5.4.28-rt19] ARM64: nfs boot issues Grygorii Strashko
2020-04-03 11:22 ` Grygorii Strashko
2020-04-03 16:36 ` Sebastian Andrzej Siewior
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