pt-summary stalled

[Frederic Descamps]

tested on 2.2.4 and 2.2.5

After memory title section, this error is displayed:

./pt-summary: line 1435: kB: unbound variable

then Total and Free memory are displayed and the tool hangs.

Output on 2 different severs:

      System | VMware, Inc.; VMware Virtual Platform; vNone (Other)
 Service Tag | VMware-42
    Platform | Linux
     Release | CloudLinux Server release 6.4
      Kernel | 2.6.32-379.22.1.lve1.2.17.1.el6.x86_64
Architecture | CPU = 64-bit, OS = 64-bit
   Threading | NPTL 2.12
    Compiler | GNU CC version 4.4.7 20120313 (Red Hat 4.4.7-3).
     SELinux | Disabled
 Virtualized | OpenVZ/Virtuozzo
# Processor ##################################################
  Processors | physical = 2, cores = 8, virtual = 8, hyperthreading = no
      Speeds | 8x2394.000
      Models | 8xIntel(R) Xeon(R) CPU E5620 @ 2.40GHz
      Caches | 8x12288 KB
# Memory #####################################################
./pt-summary: line 1435: kB: unbound variable
       Total | 15.5G
        Free | 89.5M

      System | VMware, Inc.; VMware Virtual Platform; vNone (Other)
 Service Tag | VMware-42 3a e1 99 7b 47 dd 62-89 d1 74 d6 0b 28 8e bb
    Platform | Linux
     Release | CloudLinux Server release 6.4
      Kernel | 2.6.32-458.6.2.lve1.2.30.el6.x86_64
Architecture | CPU = 64-bit, OS = 64-bit
   Threading | NPTL 2.12
    Compiler | GNU CC version 4.4.7 20120313 (Red Hat 4.4.7-3).
     SELinux | Disabled
 Virtualized | OpenVZ/Virtuozzo
# Processor ##################################################
  Processors | physical = 2, cores = 8, virtual = 8, hyperthreading = no
      Speeds | 8x2526.999
      Models | 8xIntel(R) Xeon(R) CPU E5630 @ 2.53GHz
      Caches | 8x12288 KB
# Memory #####################################################
./pt-summary: line 1438: kB: unbound variable
       Total | 15.5G
        Free | 674.2M

this is the content of the memory temporary file:

             total used free shared buffers cached
Mem: 16683409408 15976509440 706899968 0 971165696 7646564352
-/+ buffers/cache: 7358779392 9324630016
Swap: 8589926400 97247232 8492679168
MemTotal: 16292392 kB
MemFree: 690332 kB
Buffers: 948404 kB
Cached: 7467348 kB
SwapCached: 21480 kB
MemCommitted: 235405312 kB
VirtualSwap: 296 kB
Active: 8171032 kB
Inactive: 5287476 kB
Active(anon): 3710740 kB
Inactive(anon): 2254420 kB
Active(file): 4460292 kB
Inactive(file): 3033056 kB
Unevictable: 0 kB
Mlocked: 0 kB
SwapTotal: 8388600 kB
SwapFree: 8293632 kB
Dirty: 1984 kB
Writeback: 0 kB
AnonPages: 5025092 kB
Mapped: 986284 kB
Shmem: 922404 kB
Slab: 1851592 kB
SReclaimable: 1619368 kB
SUnreclaim: 232224 kB
KernelStack: 5784 kB
PageTables: 118808 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 16534796 kB
Committed_AS: 12359424 kB
VmallocTotal: 34359738367 kB
VmallocUsed: 378340 kB
VmallocChunk: 34359293144 kB
HardwareCorrupted: 0 kB
AnonHugePages: 0 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 2048 kB
DirectMap4k: 10240 kB
DirectMap2M: 16766976 kB

Note the presence of the follwing line:
VirtualSwap: 296 kB

[Shahriyar Rzayev (rzayev-sehriyar)]

Percona now uses JIRA for bug reports so this bug report is migrated to: https://jira.percona.com/browse/PT-1162