在 2018年11月27日 02:54, Dave Hansen 写道:
> On 11/23/18 9:12 PM, Lianbo Jiang wrote:
>> These patches add the new I/O resource descriptor 'IORES_DESC_RESERVED'
>> for the iomem resources search interfaces, and in order to make it still
>> work after the new descriptor is added, these codes originally
On 11/23/18 9:12 PM, Lianbo Jiang wrote:
> The upstream kernel can not accurately add the e820 reserved type to> kdump
> krenel e820 table.
^ kernel
> Kdump uses walk_iomem_res_desc() to iterate io resources, then adds
> the matched resource ranges to the e820 table for kdump kernel.
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On 11/23/18 9:12 PM, Lianbo Jiang wrote:
> These patches add the new I/O resource descriptor 'IORES_DESC_RESERVED'
> for the iomem resources search interfaces, and in order to make it still
> work after the new descriptor is added, these codes originally related
> to 'IORES_DESC_NONE' have been
On Mon, Nov 26, 2018 at 09:44:46AM -0800, Dave Hansen wrote:
> On 11/23/18 9:12 PM, Lianbo Jiang wrote:
> > These patches add the new I/O resource descriptor 'IORES_DESC_RESERVED'
> > for the iomem resources search interfaces, and in order to make it still
> > work after the new descriptor is
On 11/23/18 9:12 PM, Lianbo Jiang wrote:
> These patches add the new I/O resource descriptor 'IORES_DESC_RESERVED'
> for the iomem resources search interfaces, and in order to make it still
> work after the new descriptor is added, these codes originally related
> to 'IORES_DESC_NONE' have been
So I triggered a bug in x86 code. First the "okay" backtrace:
|BUG: GPF in non-whitelisted uaccess (non-canonical address?)
|general protection fault: [#1] PREEMPT SMP NOPTI
|CPU: 26 PID: 2236 Comm: sig-xstate-bum Not tainted 4.20.0-rc3 #45
|RIP: 0010:__fpu__restore_sig+0x1c1/0x540
|Call
4.4-stable review patch. If anyone has any objections, please let me know.
--
From: Ard Biesheuvel
commit 91ee5b21ee026c49e4e7483de69b55b8b47042be upstream.
Clang may emit absolute symbol references when building in non-PIC mode,
even when using the default 'small' code
4.4-stable review patch. If anyone has any objections, please let me know.
--
From: Ard Biesheuvel
commit 0426a4e68f18d75515414361de9e3e1445d2644e upstream.
To prevent the compiler from emitting absolute references to the section
markers when running in PIC mode, override the
