dmesg output:
[ 61.741644] Hardware name: IBM 2964 N63 400 (LPAR)
[ 61.741645] Krnl PSW : 00000000d4fd3f9b 000000008aabe5b8
(__alloc_pages_nodemask+0xe96/0x1068)
[ 61.741649] R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:3 CC:0 PM:0
RI:0 EA:3
[ 61.741650] Krnl GPRS: 0000000000000000 00000000006000c1 00000000006000c1
0000000000000000
[ 61.741651] 0000000000000000 000000006fff3700 0000000000000000
000003ff8117c800
[ 61.741652] 0000000000b39000 000003ff8117ca50 000003ff8117f000
0000000000000000
[ 61.741653] 0000000000000000 0000000000901b00 00000000002e56e8
000000005c18f9b8
[ 61.741661] Krnl Code: 00000000002e645a: a7110200 tmll %r1,512
00000000002e645e: a774f94a brc 7,2e56f2
#00000000002e6462: a7f40001 brc
15,2e6464
>00000000002e6466: a7f4f946 brc
15,2e56f2
00000000002e646a: e31003380004 lg %r1,824
00000000002e6470: d503f15819c0 clc
344(4,%r15),2496(%r1)
00000000002e6476: a784febc brc 8,2e61ee
00000000002e647a: a7f4fa73 brc
15,2e5960
[ 61.741674] Call Trace:
[ 61.741676] ([<00000000002e56e8>] __alloc_pages_nodemask+0x118/0x1068)
[ 61.741677] [<00000000002e0bca>] __get_free_pages+0x2a/0x60
[ 61.741680] [<000003ff8117a2e0>] hmcdrv_cache_startup+0x68/0xd0 [hmcdrv]
[ 61.741682] [<000003ff8117f03e>] hmcdrv_mod_init+0x3e/0x1000 [hmcdrv]
[ 61.741684] [<0000000000100878>] do_one_initcall+0x48/0x1d0
[ 61.741687] [<0000000000216f52>] do_init_module+0x7a/0x260
[ 61.741688] [<00000000002196e6>] load_module+0x16ee/0x1968
[ 61.741689] [<0000000000219bce>] sys_finit_module+0xb6/0xf8
[ 61.741693] [<00000000008f0dc0>] system_call+0xdc/0x2c8
[ 61.741693] Last Breaking-Event-Address:
[ 61.741695] [<00000000002e6462>] __alloc_pages_nodemask+0xe92/0x1068
[ 61.741696] ---[ end trace 3870bf3953e53424 ]---
[ 61.741697] hmcdrv.a3150c: Allocating the requested cache size of 134217728
bytes failed
[ 108.285532] hmcdrv.a3150c: Allocating the requested cache size of 67108864
bytes failed
[ 120.229043] hmcdrv.a3150c: Allocating the requested cache size of 33554432
bytes failed
[ 130.020224] hmcdrv.a3150c: Allocating the requested cache size of 16777216
bytes failed
[ 143.255667] hmcdrv.a3150c: Allocating the requested cache size of 8388608
bytes failed
[ 155.345222] hmcdrv.a3150c: Allocating the requested cache size of 4194304
bytes failed
[ 165.291445] hmcdrv.a3150c: Allocating the requested cache size of 2097152
bytes failed
[ 173.740144] hmcdrv.a3150c: Allocating the requested cache size of 2097152
bytes failed
[ 279.595926] hmcdrv: `1G' invalid for parameter `cachesize'
[ 285.847067] hmcdrv: `512M' invalid for parameter `cachesize'
[ 708.461429] hmcdrv.a3150c: Allocating the requested cache size of 1050624
bytes failed
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https://bugs.launchpad.net/bugs/1806115
Title:
cannot set hmcdrv cachesize to 1GB
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