Matthew Wilcox wrote:
> On Thu, Apr 27, 2023 at 06:35:57PM -0700, Dan Williams wrote:
> > Jane Chu wrote:
> > > Hi, Dan,
> > >
> > > On 4/27/2023 2:36 PM, Dan Williams wrote:
> > > > Jane Chu wrote:
> > > >> When dax fault handler fails to provision the fault page due to
> > > >> hwpoison, it retu
On Thu, Apr 27, 2023 at 06:35:57PM -0700, Dan Williams wrote:
> Jane Chu wrote:
> > Hi, Dan,
> >
> > On 4/27/2023 2:36 PM, Dan Williams wrote:
> > > Jane Chu wrote:
> > >> When dax fault handler fails to provision the fault page due to
> > >> hwpoison, it returns VM_FAULT_SIGBUS which lead to a si
Jane Chu wrote:
> Hi, Dan,
>
> On 4/27/2023 2:36 PM, Dan Williams wrote:
> > Jane Chu wrote:
> >> When dax fault handler fails to provision the fault page due to
> >> hwpoison, it returns VM_FAULT_SIGBUS which lead to a sigbus delivered
> >> to userspace with .si_code BUS_ADRERR. Channel dax back
On 4/27/2023 4:48 PM, Matthew Wilcox wrote:
On Thu, Apr 27, 2023 at 04:36:58PM -0700, Jane Chu wrote:
This change results in EHWPOISON leaking to usersapce in the case of
read(2), that's not a return code that block I/O applications have ever
had to contend with before. Just as badblocks cause E
On Thu, Apr 27, 2023 at 04:36:58PM -0700, Jane Chu wrote:
> > This change results in EHWPOISON leaking to usersapce in the case of
> > read(2), that's not a return code that block I/O applications have ever
> > had to contend with before. Just as badblocks cause EIO to be returned,
> > so should po
Hi, Dan,
On 4/27/2023 2:36 PM, Dan Williams wrote:
Jane Chu wrote:
When dax fault handler fails to provision the fault page due to
hwpoison, it returns VM_FAULT_SIGBUS which lead to a sigbus delivered
to userspace with .si_code BUS_ADRERR. Channel dax backend driver's
detection on hwpoison to
Hi, Dan,
On 4/27/2023 2:36 PM, Dan Williams wrote:
Jane Chu wrote:
When dax fault handler fails to provision the fault page due to
hwpoison, it returns VM_FAULT_SIGBUS which lead to a sigbus delivered
to userspace with .si_code BUS_ADRERR. Channel dax backend driver's
detection on hwpoison to
Jane Chu wrote:
> When dax fault handler fails to provision the fault page due to
> hwpoison, it returns VM_FAULT_SIGBUS which lead to a sigbus delivered
> to userspace with .si_code BUS_ADRERR. Channel dax backend driver's
> detection on hwpoison to the filesystem to provide the precise reason
>
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