How long does it take for you to reproduce this issue? I ran the same test on AMD64 for over 12hrs and was not able to reproduce the failure. The 17.04 kernel I have is 4.9.0-15-generic #16-Ubuntu SMP Fri Jan 20.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1664708 Title: LTPstress :- genload: page allocation stalls on Ubuntu 17.04 , Power NV system Status in linux package in Ubuntu: New Bug description: == Comment: #0 - Shriya R. Kulkarni <shriy...@in.ibm.com> - 2017-02-10 06:24:36 == Problem Description : ============== Executed ./ltpstress.sh from ltp testsuite on Bare metal and suddenly system hangs up for few minutes. I see call traces in dmesg as genload : page allocation stalls. Test : --------- Execution of ltpstress (LTP version : ltp-full-20170116) System : -------------- Ubuntu 17.04, Power NV(Habanero and POwerKVM5) uname -a : --------------- 4.9.0-15-generic Steps : ---------- 1. Download ltp testsuite 2. Untar 3. ./configure, make , make install 4. cd /opt/ltp/testscripts/ 5. ./ltpstress.sh Call trace : ---------------- [ 5443.865352] genload: [ 5443.865352] genload: page allocation stalls for 37764ms, order:0, mode:0x24200ca(GFP_HIGHUSER_MOVABLE) [ 5443.865360] page allocation stalls for 51524ms, order:0 [ 5443.865362] , mode:0x24200ca(GFP_HIGHUSER_MOVABLE) [ 5443.865365] CPU: 68 PID: 33142 Comm: genload Not tainted 4.9.0-15-generic #16-Ubuntu [ 5443.865366] Call Trace: [ 5443.865372] [c000003bf10d3940] [c000000000b2b720] dump_stack+0xb0/0xf0 (unreliable) [ 5443.865377] [c000003bf10d3980] [c000000000259560] warn_alloc+0x130/0x160 [ 5443.865382] [c000003bf10d3a10] [c00000000025a1b0] __alloc_pages_nodemask+0xb80/0xff0 [ 5443.865386] [c000003bf10d3c30] [c0000000002d2794] alloc_pages_vma+0x104/0x350 [ 5443.865390] [c000003bf10d3cc0] [c00000000029e948] handle_mm_fault+0x1058/0x1510 [ 5443.865393] [c000003bf10d3d80] [c000000000054d10] do_page_fault+0x350/0x7d0 [ 5443.865398] [c000003bf10d3e30] [c00000000000b148] handle_page_fault+0x10/0x30 [ 5443.865400] Mem-Info: [ 5443.865403] CPU: 22 PID: 33414 Comm: genload Not tainted 4.9.0-15-generic #16-Ubuntu [ 5443.865404] Call Trace: [ 5443.865407] [c000003b565e7940] [c000000000b2b720] dump_stack+0xb0/0xf0 [ 5443.865414] active_anon:3975704 inactive_anon:84983 isolated_anon:12968 active_file:233 inactive_file:186 isolated_file:0 unevictable:69 dirty:4 writeback:5409 unstable:0 slab_reclaimable:5089 slab_unreclaimable:25129 mapped:107 shmem:3 pagetables:1631 bounce:0 free:2544 free_pcp:0 free_cma:214 [ 5443.865416] (unreliable) [ 5443.865420] [c000003b565e7980] [c000000000259560] warn_alloc+0x130/0x160 [ 5443.865424] [c000003b565e7a10] [c00000000025a1b0] __alloc_pages_nodemask+0xb80/0xff0 [ 5443.865428] [c000003b565e7c30] [c0000000002d2794] alloc_pages_vma+0x104/0x350 [ 5443.865438] [c000003b565e7cc0] [c00000000029e948] handle_mm_fault+0x1058/0x1510 [ 5443.865438] Node 0 active_anon:254445056kB inactive_anon:5438912kB active_file:14912kB inactive_file:11904kB unevictable:4416kB isolated(anon):829952kB isolated(file):0kB mapped:6848kB dirty:256kB writeback:346176kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 217022464kB anon_thp: 192kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no [ 5443.865443] [c000003b565e7d80] [c000000000054d10] do_page_fault+0x350/0x7d0 [ 5443.865443] Node 0 DMA free:162816kB min:180224kB low:443776kB high:707328kB active_anon:254445056kB inactive_anon:5436096kB active_file:10816kB inactive_file:15232kB unevictable:4416kB writepending:341504kB present:268435456kB managed:263658752kB mlocked:4416kB slab_reclaimable:325696kB slab_unreclaimable:1608256kB kernel_stack:21776kB pagetables:104384kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:13696kB [ 5443.865453] lowmem_reserve[]: [ 5443.865457] [c000003b565e7e30] [c00000000000b148] handle_page_fault+0x10/0x30 [ 5443.865458] 0 [ 5443.865460] 0 [ 5443.865461] 0 0 [ 5443.865464] Mem-Info: [ 5443.865466] Node 0 DMA: 433*64kB (UMEC) 135*128kB [ 5443.865476] active_anon:3975704 inactive_anon:84983 isolated_anon:12968 active_file:233 inactive_file:186 isolated_file:0 unevictable:69 dirty:4 writeback:5409 unstable:0 slab_reclaimable:5089 slab_unreclaimable:25129 mapped:107 shmem:3 pagetables:1631 bounce:0 free:2544 free_pcp:0 free_cma:214 [ 5443.865477] (UMEC) 35*256kB (UME) 10*512kB (UMEC) 32*1024kB (UME) 9*2048kB (UME) 3*4096kB (UM) 6*8192kB (MC) 0*16384kB = 171712kB [ 5443.865493] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1024kB == Comment: #4 - Shriya R. Kulkarni <shriy...@in.ibm.com> - 2017-02-14 00:43:01 == Hi Canonical, This bug appears to be similar to https://lkml.org/lkml/2017/1/11/189 and does not appear to be Power arch specific. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1664708/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
