Re: [zram] ltp inspired explosion - master v4.13-rc1-3-g87b2c3fc6317

2017-08-08 Thread Michael Ellerman
Minchan Kim writes: > On Wed, Aug 02, 2017 at 02:24:20PM +1000, Michael Ellerman wrote: >> Minchan Kim writes: >> > From 0ffbd3c8769fdf56e2f14908f890f9d1703ed32e Mon Sep 17 00:00:00 2001 >> > From: Minchan Kim >> > Date: Tue, 25 Jul 2017 15:15:18 +0900 >> > Subject: [PATCH] zram: do not free poo

Re: [zram] ltp inspired explosion - master v4.13-rc1-3-g87b2c3fc6317

2017-08-02 Thread Minchan Kim
Hi Michael, On Wed, Aug 02, 2017 at 02:24:20PM +1000, Michael Ellerman wrote: > Minchan Kim writes: > > From 0ffbd3c8769fdf56e2f14908f890f9d1703ed32e Mon Sep 17 00:00:00 2001 > > From: Minchan Kim > > Date: Tue, 25 Jul 2017 15:15:18 +0900 > > Subject: [PATCH] zram: do not free pool->size_class >

Re: [zram] ltp inspired explosion - master v4.13-rc1-3-g87b2c3fc6317

2017-08-01 Thread Michael Ellerman
Minchan Kim writes: > From 0ffbd3c8769fdf56e2f14908f890f9d1703ed32e Mon Sep 17 00:00:00 2001 > From: Minchan Kim > Date: Tue, 25 Jul 2017 15:15:18 +0900 > Subject: [PATCH] zram: do not free pool->size_class > > Mike reported kernel goes oops with ltp:zram03 testcase. ... > > He bisected the probl

Re: [zram] ltp inspired explosion - master v4.13-rc1-3-g87b2c3fc6317

2017-07-25 Thread Mike Galbraith
On Tue, 2017-07-25 at 15:26 +0900, Minchan Kim wrote: > Hi, > > On Mon, Jul 24, 2017 at 08:17:01PM +0200, Mike Galbraith wrote: > > Now bisected and verified via revert, the culprit is: > > > > cf8e0fedf078 mm/zsmalloc: simplify zs_max_alloc_size handling > > > > Reproducer: ltp::testcases/bin/z

Re: [zram] ltp inspired explosion - master v4.13-rc1-3-g87b2c3fc6317

2017-07-24 Thread Minchan Kim
Hi, On Mon, Jul 24, 2017 at 08:17:01PM +0200, Mike Galbraith wrote: > Now bisected and verified via revert, the culprit is: > > cf8e0fedf078 mm/zsmalloc: simplify zs_max_alloc_size handling > > Reproducer: ltp::testcases/bin/zram03. > Thanks for the report and bisecting. I believe this patch s

Re: [zram] ltp inspired explosion - master v4.13-rc1-3-g87b2c3fc6317

2017-07-24 Thread Mike Galbraith
Now bisected and verified via revert, the culprit is: cf8e0fedf078 mm/zsmalloc: simplify zs_max_alloc_size handling Reproducer: ltp::testcases/bin/zram03. -Mike

[zram] ltp inspired explosion - master v4.13-rc1-3-g87b2c3fc6317

2017-07-17 Thread Mike Galbraith
Greetings, Running ltp zram testcases, met the below. [ 1347.685763] loop: module loaded [ 1347.809396] zram: Added device: zram0 [ 1347.813256] zram: Added device: zram1 [ 1347.817100] zram: Added device: zram2 [ 1347.820941] zram: Added device: zram3 [ 1347.846747] zram0: detected capacity chan