Re: [gentoo-user] /var/log/messages is huge

[dhk]

On 08/17/2010 02:45 AM, Florian CROUZAT wrote:
>
> On 17 août 2010, at 02:58, Adam Carter wrote:
>
>>> Aug 16 20:22:59 host kernel: usb-storage: -- transfer complete
>>> Aug 16 20:22:59 host kernel: usb-storage: Bulk command transfer result=0
>>> Aug 16 20:22:59 host kernel: usb-storage: Attempting to get CSW...
>>> Aug 16 20:22:59 host kernel: usb-storage: usb_stor_bulk_transfer_buf:
>>> xfer 13 bytes
>>> Aug 16 20:22:59 host kernel: usb-storage: Status code 0; transferred 13/13
>>> Aug 16 20:22:59 host kernel: usb-storage: -- transfer complete
>>> Aug 16 20:22:59 host kernel: usb-storage: Bulk status result = 0
>>> Aug 16 20:22:59 host kernel: usb-storage: Bulk Status S 0x53425355 T
>>> 0x5c33 R 0 Stat 0x0
>>> Aug 16 20:22:59 host kernel: usb-storage: scsi cmd done, result=0x0
>>> Aug 16 20:22:59 host kernel: usb-storage: *** thread sleeping.
>>>
>>> What's going on here?  Why all these usb-storage messages?
>
>> You've probably turned on CONFIG_USB_STORAGE_DEBUG when you configured the kernel
>
> Yeah and not only it makes your logs huge, but it also slows down your box using your CPU to flood while doing USB transfer.
> On my old box, with CONFIG_USB_STORAGE_DEBUG set, syslog-ng eats 25% of my CPU when doing ntfs3g.
> Totally something you want to turn off, unless you have serious issues with USB.
>
> ----
> Florian
> / For security reasons, all text in this mail
>   is double-rot13 encrypted. /
>

Yes, I have it turned on in the kernel.
# grep CONFIG_USB_STORAGE_DEBUG
/etc/kernels/kernel-config-x86_64-2.6.32-gentoo-r7
CONFIG_USB_STORAGE_DEBUG=y

I don't understand why it just started to be a problem.  I've had this
kernel for almost four months.  Shouldn't the log's be rotated and purged?

I've been using the default kernel config from the install.  I'll make a
new kernel with it turned off.

Thanks,

dhk