On 08/22/2017 08:49 PM, Edward Shishkin wrote:
Hello,
Please, try the attached patches.
The first patch improves responsiveness to vm subsystem
(modified version of ->migratepage()
Hi all,
I found that the first patch leads to system lockups after ~1 hour of
stress-testing.
This is a side effect of appearing of non-parsed jnodes in writeback
queues for some
reasons. So please, drop it for now..
Thanks,
Edward.
The second patch performs memory allocation in the critical
place with __GFP_NOFAIL flag.
Let us know about results.
Thanks,
Edward.
On 08/20/2017 07:15 PM, Metztli Information Technology wrote:
Niltze, Ed-
Although I am using your latest Reiser4 patch for Linux kernel 4.12.x
on a test 1.2TB (transparent compression) reiser4 root fs, I have seen
dmesg generate the following in lesser version patches and in much
smaller partitions, i.e., 20Gb -- with transparent compression, too.
Your input would be greatly appreciated:
[ 3449.944653] reiser4[StorageManager(2383)]: lzo1_alloc
(/mnt/chiucuetetl/usr/src/linux/fs/reiser4/plugin/compress/compress.c:241)[edward-878]:
WARNING: alloc workspace for lzo1 (tfm action = 1)
failed
[ 3449.944674] reiser4[StorageManager(2383)]: lzo1_alloc
(/mnt/chiucuetetl/usr/src/linux/fs/reiser4/plugin/compress/compress.c:241)[edward-878]:
WARNING: alloc workspace for lzo1 (tfm action = 1)
failed
[ 3449.944694] reiser4[StorageManager(2383)]: lzo1_alloc
(/mnt/chiucuetetl/usr/src/linux/fs/reiser4/plugin/compress/compress.c:241)[edward-878]:
WARNING: alloc workspace for lzo1 (tfm action = 1)
failed
[ 3449.944715] reiser4[StorageManager(2383)]: lzo1_alloc
(/mnt/chiucuetetl/usr/src/linux/fs/reiser4/plugin/compress/compress.c:241)[edward-878]:
WARNING: alloc workspace for lzo1 (tfm action = 1)
failed
[snip]
( the above replicate for about two(2) thousand lines )
Please note that the error above is not immediate but is triggered
possibly by multiple events run simultaneously, i.e.,
plugged 1TB USB hard disk with multiple partitions where copy
operation to local disk is being run; another copy operation to-from
local hard
disk itself on same filesystem; installing additional packages,
building local software, etc.
Subsequently system slows down in latency and fan use increases in
all instances.
Thank you in advance for your insight.
Best Professional Regards.
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