..@intel.com]
> Sent: Wednesday, September 04, 2013 12:11 PM
> To: Aruna Balakrishnaiah; Seiji Aguchi
> Cc: jkeni...@linux.vnet.ibm.com; keesc...@chromium.org;
> mah...@linux.vnet.ibm.com; ccr...@android.com; linux-
> ker...@vger.kernel.org; linuxppc-...@ozlabs.org; cbouatmai...@gmail.com
> The reason behind compression failure is the size of big_oops_buf which is too
> big for efivars case. I will do some experiments with different kind of texts
> for buffer size 1024 to check if 100/53 suits for all the cases.
...
> Yes this can be changed to zlib_inflateInit2().
Original patch
On Wednesday 04 September 2013 07:14 AM, Seiji Aguchi wrote:
Aruna,
Sorry for the late response.
Seiji,
Could you let us know the efivars buffer size with which the pstore is
registered when
the failure occurred.
I looked into the issue today.
I added some debug message just before pstore_c
Aruna,
Sorry for the late response.
> Seiji,
>
> Could you let us know the efivars buffer size with which the pstore is
> registered when
> the failure occurred.
I looked into the issue today.
I added some debug message just before pstore_compress().
As you can see below, the buffer size is a
On Friday 23 August 2013 04:47 AM, Luck, Tony wrote:
<1>[ 383.209057] RIP [] sysrq_handle_crash+0x16/0x20
<4>[ 383.209057] RSP
<4>[ 383.209057] CR2:
<4>[ 383.209057] ---[ end trace 04a1cddad37b4b33 ]---
<3>[ 383.209057] pstore: compression failed for Part 2 returned -5
<3
a...@in.ibm.com; b...@kernel.crashing.org;
> cbouatmai...@gmail.com;
> mah...@linux.vnet.ibm.com; ccr...@android.com
> Subject: RE: [RFC PATCH v2 04/11] pstore: Add compression support to pstore
>
> <1>[ 383.209057] RIP [] sysrq_handle_crash+0x16/0x20
> <4
<1>[ 383.209057] RIP [] sysrq_handle_crash+0x16/0x20
<4>[ 383.209057] RSP
<4>[ 383.209057] CR2:
<4>[ 383.209057] ---[ end trace 04a1cddad37b4b33 ]---
<3>[ 383.209057] pstore: compression failed for Part 2 returned -5
<3>[ 383.209057] pstore: Capture uncompressed oops/panic
> * callback from kmsg_dump. (s2,l2) has the most recently
> * written bytes, older bytes are in (s1,l1). Save as much
> @@ -148,23 +243,56 @@ static void pstore_dump(struct kmsg_dumper *dumper,
> char *dst;
> unsigned long size;
> int hsize;
> +
Add compression support to pstore which will help in capturing more data.
Initially, pstore will make a call to kmsg_dump with a bigger buffer
and will pass the size of bigger buffer to kmsg_dump and then compress
the data to registered buffer of registered size.
In case compression fails, pstore
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