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3258abe099
E.g.:
# strace -e futex -p 14437
strace: Process 14437 attached
futex(0x7f46f4808d70, FUTEX_WAKE_PRIVATE, 1) = 0
futex(0x7f46f24e68b0, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, {tv_sec=1516636744, tv_nsec=221969000}, 0xffffffff) = -1 ETIMEDOUT (Connection timed out)
<detached ...>
#
Should pretty print that 0xffffffff value, like:
# trace -e futex --tid 14437
0.028 ( 0.005 ms): futex(uaddr: 0x7f46f4808d70, op: WAKE|PRIV, val: 1 ) = 0
0.037 (1000.092 ms): futex(uaddr: 0x7f46f24e68b0, op: WAIT_BITSET|PRIV|CLKRT, utime: 0x7f46f23fedf0, val3: MATCH_ANY) = -1 ETIMEDOUT Connection timed out
^C#
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-raef6e352la90600yksthao1@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.