On Thu, Jun 29, 2017 at 12:41:07PM -0700, Nick Terrell wrote:
> +static void zstd_free_workspace(struct list_head *ws)
> +{
> + struct workspace *workspace = list_entry(ws, struct workspace, list);
> +
> + vfree(workspace->mem);
> + kfree(workspace->buf);
> + kfree(workspace);
> +}
On Tue, Jul 11, 2017 at 06:01:38AM +, Nick Terrell wrote:
> On 7/10/17, 9:57 PM, "Nick Terrell" wrote:
> > The problem is caused by a gcc-7 bug [1]. It miscompiles
> > ZSTD_wildcopy(void *dst, void const *src, ptrdiff_t len) when len is 0.
>
> Sorry, my patch still triggered the gcc bug, I use
On 7/10/17, 9:57 PM, "Nick Terrell" wrote:
> The problem is caused by a gcc-7 bug [1]. It miscompiles
> ZSTD_wildcopy(void *dst, void const *src, ptrdiff_t len) when len is 0.
> It only happens when it can't analyze ZSTD_copy8(), which is the case in
> the kernel, because memcpy() is implemented w
On 7/10/17, 5:36 AM, "Austin S. Hemmelgarn" wrote:
> On 2017-07-07 23:07, Adam Borowski wrote:
>> On Sat, Jul 08, 2017 at 01:40:18AM +0200, Adam Borowski wrote:
>>> On Fri, Jul 07, 2017 at 11:17:49PM +, Nick Terrell wrote:
On 7/6/17, 9:32 AM, "Adam Borowski" wrote:
> Got a reproducib
On 7/10/17, 5:36 AM, "Austin S. Hemmelgarn" wrote:
> On 2017-07-07 23:07, Adam Borowski wrote:
>> On Sat, Jul 08, 2017 at 01:40:18AM +0200, Adam Borowski wrote:
>>> On Fri, Jul 07, 2017 at 11:17:49PM +, Nick Terrell wrote:
On 7/6/17, 9:32 AM, "Adam Borowski" wrote:
> Got a reproducib
On 2017-07-07 23:07, Adam Borowski wrote:
On Sat, Jul 08, 2017 at 01:40:18AM +0200, Adam Borowski wrote:
On Fri, Jul 07, 2017 at 11:17:49PM +, Nick Terrell wrote:
On 7/6/17, 9:32 AM, "Adam Borowski" wrote:
Got a reproducible crash on amd64:
Thanks for the bug report Adam! I'm looking i
On Sat, Jul 08, 2017 at 01:40:18AM +0200, Adam Borowski wrote:
> On Fri, Jul 07, 2017 at 11:17:49PM +, Nick Terrell wrote:
> > On 7/6/17, 9:32 AM, "Adam Borowski" wrote:
> > > Got a reproducible crash on amd64:
>
> > Thanks for the bug report Adam! I'm looking into the failure, and haven't
> >
On Fri, Jul 07, 2017 at 11:17:49PM +, Nick Terrell wrote:
> On 7/6/17, 9:32 AM, "Adam Borowski" wrote:
> > Got a reproducible crash on amd64:
> >
> > [98235.266511] BUG: unable to handle kernel paging request at
> > c90001251000
> > [98235.314008] ? ZSTD_compressBlock_fast+0x94b/0xb30
>
On 7/6/17, 9:32 AM, "Adam Borowski" wrote:
> On Thu, Jun 29, 2017 at 12:41:07PM -0700, Nick Terrell wrote:
>> Add zstd compression and decompression support to BtrFS. zstd at its
>> fastest level compresses almost as well as zlib, while offering much
>> faster compression and decompression, approa
On Thu, Jun 29, 2017 at 12:41:07PM -0700, Nick Terrell wrote:
> Add zstd compression and decompression support to BtrFS. zstd at its
> fastest level compresses almost as well as zlib, while offering much
> faster compression and decompression, approaching lzo speeds.
Got a reproducible crash on am
On Thu, Jun 29, 2017 at 12:41:07PM -0700, Nick Terrell wrote:
> Add zstd compression and decompression support to BtrFS. zstd at its
> fastest level compresses almost as well as zlib, while offering much
> faster compression and decompression, approaching lzo speeds.
> +static int zstd_decompress_
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