linux-kernel - Re: [LKP] [cfg80211] eeca9fce1d7: BUG: kernel boot oversize

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Date:	Thu, 2 Apr 2015 16:48:34 +0200
From:	Tomeu Vizoso <tomeu.vizoso@...il.com>
To:	"Peer, Ilan" <ilan.peer@...el.com>
Cc:	"Huang, Ying" <ying.huang@...el.com>,
	"Berg, Johannes" <johannes.berg@...el.com>,
	LKML <linux-kernel@...r.kernel.org>, "lkp@...org" <lkp@...org>
Subject: Re: [LKP] [cfg80211] eeca9fce1d7: BUG: kernel boot oversize

On 24 March 2015 at 09:34, Peer, Ilan <ilan.peer@...el.com> wrote:
> Hi,
>
> This mean u probably do not have crda installed, or it is not properly configured. These are debug prints so the simplest would be to disable CONFIG_CFG80211_REG_DEBUG .. unless you are debugging wireless regulatory flows.

Are you sure? I see lots (one every ~3 seconds) of this after rebasing
on latest linux-next and CONFIG_CFG80211_REG_DEBUG isn't enabled:

[   19.382847] cfg80211: Calling CRDA to update world regulatory domain

Reverting this patch brings back the old behavior.

> Regardless, I'll try to come up with a better solution to handle such cases.

Thanks,

Tomeu

> Thanks,
>
> Ilan.
>
>> -----Original Message-----
>> From: Huang, Ying
>> Sent: Tuesday, March 24, 2015 09:32
>> To: Peer, Ilan
>> Cc: Berg, Johannes; LKML; lkp@...org
>> Subject: [LKP] [cfg80211] eeca9fce1d7: BUG: kernel boot oversize
>>
>> FYI, we noticed the below changes on
>>
>> git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next.git master
>> commit eeca9fce1d71a4955855ceb0c3b13c1eb9db27c1 ("cfg80211:
>> Schedule timeout for all CRDA calls")
>>
>>
>> +-------------------------+------------+------------+
>> |                         | 0505075360 | eeca9fce1d |
>> +-------------------------+------------+------------+
>> | boot_successes          | 9          | 9          |
>> | boot_failures           | 0          | 1          |
>> | BUG:kernel_boot_crashed | 0          | 1          |
>> +-------------------------+------------+------------+
>>
>> It appears too many like like below in dmesg after applying the patch in a
>> virtual machine.
>>
>> [11223.232543] cfg80211: Kicking the queue [11223.233674] cfg80211:
>> Calling CRDA to update world regulatory domain
>>
>> BUG: kernel boot oversize
>> Elapsed time: 11150
>> qemu-system-x86_64 -enable-kvm -cpu Haswell,+smep,+smap -kernel
>> /kernel/x86_64-randconfig-n0-
>> 03210642/ca2fd9633ed4fe8a5ad56efb2fcef061a19f2e90/vmlinuz-4.0.0-rc4-
>> wl-ath-03682-gca2fd963 -append 'user=lkp job=/lkp/scheduled/vm-kbuild-
>> 1G-10/rand_boot-1-x86_64-randconfig-n0-03210642-
>> ca2fd9633ed4fe8a5ad56efb2fcef061a19f2e90-0.yaml ARCH=x86_64
>> BOOT_IMAGE=/kernel/x86_64-randconfig-n0-
>> 03210642/ca2fd9633ed4fe8a5ad56efb2fcef061a19f2e90/vmlinuz-4.0.0-rc4-
>> wl-ath-03682-gca2fd963 kconfig=x86_64-randconfig-n0-03210642
>> commit=ca2fd9633ed4fe8a5ad56efb2fcef061a19f2e90 branch=linux-
>> devel/devel-hourly-2015032023 root=/dev/ram0 max_uptime=3600
>> RESULT_ROOT=/result/vm-kbuild-1G/boot/1/debian-x86_64-2015-02-
>> 07.cgz/x86_64-randconfig-n0-
>> 03210642/ca2fd9633ed4fe8a5ad56efb2fcef061a19f2e90/0 ip=::::vm-
>> kbuild-1G-10::dhcp earlyprintk=ttyS0,115200 rd.udev.log-priority=err
>> systemd.log_target=journal systemd.log_level=warning debug apic=debug
>> sysrq_always_enabled rcupdate.rcu_cpu_stall_timeout=100 panic=-1
>> softlockup_panic=1 nmi_watchdog=panic oops=panic load_ramdisk=2
>> prompt_ramdisk=0 console=ttyS0,115200 console=tty0 vga=normal rw'  -
>> initrd /fs/sdd1/initrd-vm-kbuild-1G-10 -m 1024 -smp 2 -net
>> nic,vlan=1,model=e1000 -net user,vlan=1 -boot order=nc -no-reboot -
>> watchdog i6300esb -rtc base=localtime -device virtio-scsi-pci,id=scsi0 -drive
>> file=/fs/sdd1/disk0-vm-kbuild-1G-
>> 10,if=none,id=hd0,media=disk,aio=native,cache=none -device scsi-
>> hd,bus=scsi0.0,drive=hd0,scsi-id=1,lun=0 -drive file=/fs/sdd1/disk1-vm-
>> kbuild-1G-10,if=none,id=hd1,media=disk,aio=native,cache=none -device scsi-
>> hd,bus=scsi0.0,drive=hd1,scsi-id=1,lun=1 -drive file=/fs/sdd1/disk2-vm-
>> kbuild-1G-10,if=none,id=hd2,media=disk,aio=native,cache=none -device scsi-
>> hd,bus=scsi0.0,drive=hd2,scsi-id=1,lun=2 -drive file=/fs/sdd1/disk3-vm-
>> kbuild-1G-10,if=none,id=hd3,media=disk,aio=native,cache=none -device scsi-
>> hd,bus=scsi0.0,drive=hd3,scsi-id=1,lun=3 -drive file=/fs/sdd1/disk4-vm-
>> kbuild-1G-10,if=none,id=hd4,media=disk,aio=native,cache=none -device scsi-
>> hd,bus=scsi0.0,drive=hd4,scsi-id=1,lun=4 -pidfile /dev/shm/kboot/pid-vm-
>> kbuild-1G-10 -serial file:/dev/shm/kboot/serial-vm-kbuild-1G-10 -daemonize -
>> display none -monitor null
>>
>>
>>
>> Thanks,
>> Ying Huang
>
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