Le 29/11/2023 à 11:30, Salvatore Bonaccorso a écrit :
> Hi,
>
> On Sun, Nov 19, 2023 at 06:14:50AM -0700, Jens Axboe wrote:
>> On 11/18/23 4:45 PM, Timothy Pearson wrote:
>>> During floating point and vector save to thread data fr0/vs0 are clobbered
>>> by the FPSCR/VSCR store routine. This lea
Hi,
On Sun, Nov 19, 2023 at 06:14:50AM -0700, Jens Axboe wrote:
> On 11/18/23 4:45 PM, Timothy Pearson wrote:
> > During floating point and vector save to thread data fr0/vs0 are clobbered
> > by the FPSCR/VSCR store routine. This leads to userspace register
> > corruption
> > and application da
On 11/18/23 4:45 PM, Timothy Pearson wrote:
> During floating point and vector save to thread data fr0/vs0 are clobbered
> by the FPSCR/VSCR store routine. This leads to userspace register corruption
> and application data corruption / crash under the following rare condition:
>
> * A userspace
On Sat, Nov 18, 2023 at 05:45:03PM -0600, Timothy Pearson wrote:
> During floating point and vector save to thread data fr0/vs0 are clobbered
> by the FPSCR/VSCR store routine. This leads to userspace register corruption
> and application data corruption / crash under the following rare condition:
On 19.11.23 00:45, Timothy Pearson wrote:
> During floating point and vector save to thread data fr0/vs0 are clobbered
> by the FPSCR/VSCR store routine. This leads to userspace register corruption
> and application data corruption / crash under the following rare condition:
> [...]
> Tested-by: T
- Original Message -
> From: "Timothy Pearson"
> To: "Jens Axboe" , "regressions"
> , "Michael Ellerman"
> , "npiggin" , "christophe leroy"
> , "linuxppc-dev"
>
> Sent: Saturday, Novem
During floating point and vector save to thread data fr0/vs0 are clobbered
by the FPSCR/VSCR store routine. This leads to userspace register corruption
and application data corruption / crash under the following rare condition:
* A userspace thread is executing with VSX/FP mode enabled
* The us
