Bug#887873: linux-image-4.9.0-5-marvell: frequent "usercopy: kernel memory overwrite attempt detected" on QNAP NAS (ARM)

2018-03-07 Thread Menno Finlay-Smits
On Thu, 8 Mar 2018, at 02:36, Andrew Lunn wrote: > > What else can I try? > > Do you have transparent huge pages enabled? > > ~$ cat /sys/kernel/mm/transparent_hugepage/enabled > [always] madvise never > > If so, could you disable it with: > > echo never >

Bug#887873: linux-image-4.9.0-5-marvell: frequent "usercopy: kernel memory overwrite attempt detected" on QNAP NAS (ARM)

2018-03-07 Thread Andrew Lunn
On Thu, Mar 08, 2018 at 09:49:29AM +1300, Menno Finlay-Smits wrote: > On Thu, 8 Mar 2018, at 02:36, Andrew Lunn wrote: > > > What else can I try? > > > > Do you have transparent huge pages enabled? > > > > ~$ cat /sys/kernel/mm/transparent_hugepage/enabled > > [always] madvise never > > > > If

Re: Problem about modules signing for debian kernel

2018-03-07 Thread Yanhao Mo
On Wed 03/07 14:56, Luca Boccassi wrote: > > I've had this problem in the past. There are 2 issues. > > First of all, as far as I can see and test, _SIG_KEY should not be > actually empty, but fixed to this value: > > CONFIG_MODULE_SIG_KEY="certs/signing_key.pem" > > That's what will get

Bug#887873: linux-image-4.9.0-5-marvell: frequent "usercopy: kernel memory overwrite attempt detected" on QNAP NAS (ARM)

2018-03-07 Thread Andrew Lunn
> What else can I try? Do you have transparent huge pages enabled? ~$ cat /sys/kernel/mm/transparent_hugepage/enabled [always] madvise never If so, could you disable it with: echo never > /sys/kernel/mm/transparent_hugepage/enabled and run your rsync command. Thanks Andrew

Bug#887873: linux-image-4.9.0-5-marvell: frequent "usercopy: kernel memory overwrite attempt detected" on QNAP NAS (ARM)

2018-03-07 Thread Andrew Lunn
> What else can I try? There doesn't appear to be a newer kernel in > proposed right now. Are you happy to apply patches, build a kernel, and test it? Thanks Andrew

Re: Problem about modules signing for debian kernel

2018-03-07 Thread Luca Boccassi
> Dear debian kernel maintainers: > > I want to re-package debian kernel to support modules signing. > Below is what I do: > > 1. get the debian kernel source via `apt-get source linux`, btw I'm > using the unstable version. > 2. change debian/config/config file and modify these items: >