Bug ID 1023755
Summary Crashkernel fails to reserve memory on DELL 5510
Classification openSUSE
Product openSUSE Tumbleweed
Version Current
Hardware x86-64
OS SUSE Other
Status NEW
Severity Normal
Priority P5 - None
Component Kernel
Assignee kernel-maintainers@forge.provo.novell.com
Reporter richard.palethorpe@suse.com
QA Contact qa-bugs@suse.de
Found By ---
Blocker --- 

Created attachment 712998 [details]
dmesg -H | head -n 1000

My DELL Precision 5510 occasionally freezes, so I want to take crash dumps.
However it refuses to reserve the memory for it.

I have 32GB of RAM and have tried various values such as

crashkernel=128M
           =512M
           =512M,high
           =512M@64M
           =512M@2048M
           =256M
           =256M@30000M

etc.

Error messages vary, but with 256MB,high:
Cannot reserve 256MB crashkernel low memory, please try smaller size

"Memory: 2849516K/33396668K available (7308K kernel code, 1267K rwdata, 5100K
rodata, 1772K init, 1468K bss, 697720K reserved, 0K cma-reserved)"

If it is simply set to 512MB or 256MB or 128M, it says no suitable memory could
be found. Setting it with a low offset like 128M@64M results in a message
saying the memory is already reserved.

I have a number of large tempfs drives on my system which over commit the RAM,
but I assume these are mounted much later in the boot process and don't reserve
any memory.

I have tried using the default SUSE kernel and vanilla 4.10 RC3.

iomem:
00000000-00000fff : reserved
00001000-00057fff : System RAM
00058000-00058fff : reserved
00059000-0005efff : System RAM
0005f000-0005ffff : reserved
00060000-0009efff : System RAM
0009f000-0009ffff : reserved
000a0000-000bffff : PCI Bus 0000:00
000c0000-000cfbff : Video ROM
000f0000-000fffff : System ROM
00100000-1cb75017 : System RAM
1cb75018-1cb85057 : System RAM
1cb85058-1cb86017 : System RAM
1cb86018-1cb9f657 : System RAM
1cb9f658-2a6a0fff : System RAM
2a6a1000-2a6d2fff : ACPI Tables
2a6d3000-2c100fff : System RAM
2c101000-2c101fff : ACPI Non-volatile Storage
2c102000-2c14bfff : reserved
2c14c000-2c1a2fff : System RAM
2c1a3000-2c993fff : reserved
2c994000-376a8fff : System RAM
376a9000-3799afff : reserved
3799b000-379adfff : ACPI Tables
379ae000-379e3fff : System RAM
379e4000-38035fff : ACPI Non-volatile Storage
38036000-39816fff : System RAM
39817000-3a4fefff : reserved
3a4ff000-3a4fffff : System RAM
3a500000-3a5fffff : reserved
3a600000-3bffffff : RAM buffer
3c000000-3fffffff : reserved
  3c000000-3fffffff : Graphics Stolen Memory
40000000-dfffffff : PCI Bus 0000:00
  70000000-7fffffff : 0000:00:02.0
  80000000-a1ffffff : PCI Bus 0000:06
    80000000-a1ffffff : PCI Bus 0000:07
      80000000-a1ffffff : PCI Bus 0000:09
  b0000000-c1ffffff : PCI Bus 0000:01
    b0000000-bfffffff : 0000:01:00.0
    c0000000-c1ffffff : 0000:01:00.0
  c2100000-c2afffff : PCI Bus 0000:03
  c4000000-da0fffff : PCI Bus 0000:06
    c4000000-da0fffff : PCI Bus 0000:07
      c4000000-d9efffff : PCI Bus 0000:09
      d9f00000-d9ffffff : PCI Bus 0000:3e
        d9f00000-d9f0ffff : 0000:3e:00.0
          d9f00000-d9f0ffff : xhci-hcd
      da000000-da0fffff : PCI Bus 0000:08
  db000000-dbffffff : 0000:00:02.0
  dc000000-dd0fffff : PCI Bus 0000:01
    dc000000-dcffffff : 0000:01:00.0
    dd000000-dd07ffff : 0000:01:00.0
  dd100000-ddafffff : PCI Bus 0000:03
    dd100000-dd100fff : 0000:03:00.0
      dd100000-dd100fff : rtsx_pci
  ddb00000-ddbfffff : PCI Bus 0000:02
    ddb00000-ddb01fff : 0000:02:00.0
      ddb00000-ddb01fff : iwlwifi
  ddc00000-ddc0ffff : 0000:00:1f.3
    ddc00000-ddc0ffff : ICH HD audio
  ddc10000-ddc1ffff : 0000:00:14.0
    ddc10000-ddc1ffff : xhci-hcd
  ddc20000-ddc27fff : 0000:00:04.0
  ddc28000-ddc2bfff : 0000:00:1f.3
    ddc28000-ddc2bfff : ICH HD audio
  ddc2c000-ddc2ffff : 0000:00:1f.2
  ddc30000-ddc31fff : 0000:00:17.0
    ddc30000-ddc31fff : ahci
  ddc32000-ddc320ff : 0000:00:1f.4
  ddc33000-ddc337ff : 0000:00:17.0
    ddc33000-ddc337ff : ahci
  ddc34000-ddc340ff : 0000:00:17.0
    ddc34000-ddc340ff : ahci
  ddc35000-ddc35fff : 0000:00:16.3
  ddc36000-ddc36fff : 0000:00:16.0
    ddc36000-ddc36fff : mei_me
  ddc37000-ddc37fff : 0000:00:15.1
    ddc37000-ddc371ff : lpss_dev
      ddc37000-ddc371ff : lpss_dev
    ddc37200-ddc372ff : lpss_priv
    ddc37800-ddc37fff : idma64.1
      ddc37800-ddc37fff : idma64.1
  ddc38000-ddc38fff : 0000:00:15.0
    ddc38000-ddc381ff : lpss_dev
      ddc38000-ddc381ff : lpss_dev
    ddc38200-ddc382ff : lpss_priv
    ddc38800-ddc38fff : idma64.0
      ddc38800-ddc38fff : idma64.0
  ddc39000-ddc39fff : 0000:00:14.2
  dffe0000-dfffffff : pnp 00:06
e0000000-efffffff : PCI MMCONFIG 0000 [bus 00-ff]
  e0000000-efffffff : reserved
    e0000000-efffffff : pnp 00:06
fd000000-fe7fffff : PCI Bus 0000:00
  fd000000-fdabffff : pnp 00:07
  fdac0000-fdacffff : pnp 00:09
  fdad0000-fdadffff : pnp 00:07
  fdae0000-fdaeffff : pnp 00:09
  fdaf0000-fdafffff : pnp 00:09
  fdb00000-fdffffff : pnp 00:07
    fdc6000c-fdc6000f : iTCO_wdt
      fdc6000c-fdc6000f : iTCO_wdt
  fe000000-fe010fff : reserved
  fe036000-fe03bfff : pnp 00:07
  fe03d000-fe3fffff : pnp 00:07
  fe410000-fe7fffff : pnp 00:07
fec00000-fec00fff : reserved
  fec00000-fec003ff : IOAPIC 0
fed00000-fed003ff : HPET 0
  fed00000-fed003ff : PNP0103:00
fed10000-fed17fff : pnp 00:06
fed18000-fed18fff : pnp 00:06
fed19000-fed19fff : pnp 00:06
fed20000-fed3ffff : pnp 00:06
fed40000-fed40fff : TPM
fed45000-fed8ffff : pnp 00:06
fed90000-fed90fff : dmar0
fed91000-fed91fff : dmar1
fee00000-fee00fff : Local APIC
  fee00000-fee00fff : reserved
ff000000-ffffffff : reserved
  ff000000-ffffffff : INT0800:00
    ff000000-ffffffff : pnp 00:06
100000000-8bdffffff : System RAM
  17d000000-17d723609 : Kernel code
  17d72360a-17df3cbff : Kernel data
  17e101000-17e26ffff : Kernel bss
8be000000-8bfffffff : RAM buffer

dmesg -H | head -n 1000:
00000000-00000fff : reserved
00001000-00057fff : System RAM
00058000-00058fff : reserved
00059000-0005efff : System RAM
0005f000-0005ffff : reserved
00060000-0009efff : System RAM
0009f000-0009ffff : reserved
000a0000-000bffff : PCI Bus 0000:00
000c0000-000cfbff : Video ROM
000f0000-000fffff : System ROM
00100000-1cb75017 : System RAM
1cb75018-1cb85057 : System RAM
1cb85058-1cb86017 : System RAM
1cb86018-1cb9f657 : System RAM
1cb9f658-2a6a0fff : System RAM
2a6a1000-2a6d2fff : ACPI Tables
2a6d3000-2c100fff : System RAM
2c101000-2c101fff : ACPI Non-volatile Storage
2c102000-2c14bfff : reserved
2c14c000-2c1a2fff : System RAM
2c1a3000-2c993fff : reserved
2c994000-376a8fff : System RAM
376a9000-3799afff : reserved
3799b000-379adfff : ACPI Tables
379ae000-379e3fff : System RAM
379e4000-38035fff : ACPI Non-volatile Storage
38036000-39816fff : System RAM
39817000-3a4fefff : reserved
3a4ff000-3a4fffff : System RAM
3a500000-3a5fffff : reserved
3a600000-3bffffff : RAM buffer
3c000000-3fffffff : reserved
  3c000000-3fffffff : Graphics Stolen Memory
40000000-dfffffff : PCI Bus 0000:00
  70000000-7fffffff : 0000:00:02.0
  80000000-a1ffffff : PCI Bus 0000:06
    80000000-a1ffffff : PCI Bus 0000:07
      80000000-a1ffffff : PCI Bus 0000:09
  b0000000-c1ffffff : PCI Bus 0000:01
    b0000000-bfffffff : 0000:01:00.0
    c0000000-c1ffffff : 0000:01:00.0
  c2100000-c2afffff : PCI Bus 0000:03
  c4000000-da0fffff : PCI Bus 0000:06
    c4000000-da0fffff : PCI Bus 0000:07
      c4000000-d9efffff : PCI Bus 0000:09
      d9f00000-d9ffffff : PCI Bus 0000:3e
        d9f00000-d9f0ffff : 0000:3e:00.0
          d9f00000-d9f0ffff : xhci-hcd
      da000000-da0fffff : PCI Bus 0000:08
  db000000-dbffffff : 0000:00:02.0
  dc000000-dd0fffff : PCI Bus 0000:01
    dc000000-dcffffff : 0000:01:00.0
    dd000000-dd07ffff : 0000:01:00.0
  dd100000-ddafffff : PCI Bus 0000:03
    dd100000-dd100fff : 0000:03:00.0
      dd100000-dd100fff : rtsx_pci
  ddb00000-ddbfffff : PCI Bus 0000:02
    ddb00000-ddb01fff : 0000:02:00.0
      ddb00000-ddb01fff : iwlwifi
  ddc00000-ddc0ffff : 0000:00:1f.3
    ddc00000-ddc0ffff : ICH HD audio
  ddc10000-ddc1ffff : 0000:00:14.0
    ddc10000-ddc1ffff : xhci-hcd
  ddc20000-ddc27fff : 0000:00:04.0
  ddc28000-ddc2bfff : 0000:00:1f.3
    ddc28000-ddc2bfff : ICH HD audio
  ddc2c000-ddc2ffff : 0000:00:1f.2
  ddc30000-ddc31fff : 0000:00:17.0
    ddc30000-ddc31fff : ahci
  ddc32000-ddc320ff : 0000:00:1f.4
  ddc33000-ddc337ff : 0000:00:17.0
    ddc33000-ddc337ff : ahci
  ddc34000-ddc340ff : 0000:00:17.0
    ddc34000-ddc340ff : ahci
  ddc35000-ddc35fff : 0000:00:16.3
  ddc36000-ddc36fff : 0000:00:16.0
    ddc36000-ddc36fff : mei_me
  ddc37000-ddc37fff : 0000:00:15.1
    ddc37000-ddc371ff : lpss_dev
      ddc37000-ddc371ff : lpss_dev
    ddc37200-ddc372ff : lpss_priv
    ddc37800-ddc37fff : idma64.1
      ddc37800-ddc37fff : idma64.1
  ddc38000-ddc38fff : 0000:00:15.0
    ddc38000-ddc381ff : lpss_dev
      ddc38000-ddc381ff : lpss_dev
    ddc38200-ddc382ff : lpss_priv
    ddc38800-ddc38fff : idma64.0
      ddc38800-ddc38fff : idma64.0
  ddc39000-ddc39fff : 0000:00:14.2
  dffe0000-dfffffff : pnp 00:06
e0000000-efffffff : PCI MMCONFIG 0000 [bus 00-ff]
  e0000000-efffffff : reserved
    e0000000-efffffff : pnp 00:06
fd000000-fe7fffff : PCI Bus 0000:00
  fd000000-fdabffff : pnp 00:07
  fdac0000-fdacffff : pnp 00:09
  fdad0000-fdadffff : pnp 00:07
  fdae0000-fdaeffff : pnp 00:09
  fdaf0000-fdafffff : pnp 00:09
  fdb00000-fdffffff : pnp 00:07
    fdc6000c-fdc6000f : iTCO_wdt
      fdc6000c-fdc6000f : iTCO_wdt
  fe000000-fe010fff : reserved
  fe036000-fe03bfff : pnp 00:07
  fe03d000-fe3fffff : pnp 00:07
  fe410000-fe7fffff : pnp 00:07
fec00000-fec00fff : reserved
  fec00000-fec003ff : IOAPIC 0
fed00000-fed003ff : HPET 0
  fed00000-fed003ff : PNP0103:00
fed10000-fed17fff : pnp 00:06
fed18000-fed18fff : pnp 00:06
fed19000-fed19fff : pnp 00:06
fed20000-fed3ffff : pnp 00:06
fed40000-fed40fff : TPM
fed45000-fed8ffff : pnp 00:06
fed90000-fed90fff : dmar0
fed91000-fed91fff : dmar1
fee00000-fee00fff : Local APIC
  fee00000-fee00fff : reserved
ff000000-ffffffff : reserved
  ff000000-ffffffff : INT0800:00
    ff000000-ffffffff : pnp 00:06
100000000-8bdffffff : System RAM
  17d000000-17d723609 : Kernel code
  17d72360a-17df3cbff : Kernel data
  17e101000-17e26ffff : Kernel bss
8be000000-8bfffffff : RAM buffer

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