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3eae52f842
For powerpc64, this test currently fails due to a mismatch in the
expected output.
This can be observed on a powerpc64le system running Fedora 27 as shown
below.
# perf test -v "probe libc's inet_pton & backtrace it with ping"
Before:
62: probe libc's inet_pton & backtrace it with ping :
--- start ---
test child forked, pid 23948
ping 23965 [003] 71136.075084: probe_libc:inet_pton: (7fff996aaf28)
7fff996aaf28 __GI___inet_pton+0x8 (/usr/lib64/libc-2.26.so)
7fff9965fa54 gaih_inet.constprop.7+0xf44 (/usr/lib64/libc-2.26.so)
FAIL: expected backtrace entry 2 "getaddrinfo\+0x[[:xdigit:]]+[[:space:]]\(/usr/lib64/libc-2.26.so\)$" got "7fff9965fa54 gaih_inet.constprop.7+0xf44 (/usr/lib64/libc-2.26.so)"
test child finished with -1
---- end ----
probe libc's inet_pton & backtrace it with ping: FAILED!
After:
62: probe libc's inet_pton & backtrace it with ping :
--- start ---
test child forked, pid 24638
ping 24655 [001] 71208.525396: probe_libc:inet_pton: (7fffa245af28)
7fffa245af28 __GI___inet_pton+0x8 (/usr/lib64/libc-2.26.so)
7fffa240fa54 gaih_inet.constprop.7+0xf44 (/usr/lib64/libc-2.26.so)
7fffa24105b4 getaddrinfo+0x164 (/usr/lib64/libc-2.26.so)
138d52d70 main+0x3e0 (/usr/bin/ping)
test child finished with 0
---- end ----
probe libc's inet_pton & backtrace it with ping: Ok
Signed-off-by: Sandipan Das <sandipan@linux.ibm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kim Phillips <kim.phillips@arm.com>
Cc: Maynard Johnson <maynard@us.ibm.com>
Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Cc: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Fixes: e07d585e2454 ("perf tests: Switch trace+probe_libc_inet_pton to use record")
Link: http://lkml.kernel.org/r/49621ec5f37109f0655e5a8c32287ad68d85a1e5.1530724939.git.sandipan@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
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.