[jdk25u-dev] RFR: 8333871: Check return values of sysinfo

[Matthias Baesken]

Backport of 8333871, os_linux.cpp needed manual adjustment because of diffs in the stride in print_memory_info

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Commit messages:
 - Backport 30410fe265d8d32fb41bae88ab882115271cdf75

Changes: https://git.openjdk.org/jdk25u-dev/pull/123/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk25u-dev&pr=123&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8333871
  Stats: 15 lines in 2 files changed: 7 ins; 0 del; 8 mod
  Patch: https://git.openjdk.org/jdk25u-dev/pull/123.diff
  Fetch: git fetch https://git.openjdk.org/jdk25u-dev.git pull/123/head:pull/123

PR: https://git.openjdk.org/jdk25u-dev/pull/123