lkml.org 
[lkml]   [2017]   [Mar]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] trace: Make trace_hwlat timestamp y2038 safe
Hi Deepa,

[auto build test WARNING on tip/perf/core]
[also build test WARNING on v4.11-rc4 next-20170327]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/Deepa-Dinamani/trace-Make-trace_hwlat-timestamp-y2038-safe/20170327-150010
config: x86_64-randconfig-s2-03271627 (attached as .config)
compiler: gcc-4.4 (Debian 4.4.7-8) 4.4.7
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64

All warnings (new ones prefixed by >>):

kernel/trace/trace_output.c: In function 'trace_hwlat_print':
>> kernel/trace/trace_output.c:1168: warning: format '%lld' expects type 'long long int', but argument 6 has type '__kernel_time_t'
kernel/trace/trace_output.c: In function 'trace_hwlat_raw':
kernel/trace/trace_output.c:1202: warning: format '%lld' expects type 'long long int', but argument 5 has type '__kernel_time_t'

vim +1168 kernel/trace/trace_output.c

e7c15cd8 Steven Rostedt (Red Hat 2016-06-23 1152) /* TRACE_HWLAT */
e7c15cd8 Steven Rostedt (Red Hat 2016-06-23 1153) static enum print_line_t
e7c15cd8 Steven Rostedt (Red Hat 2016-06-23 1154) trace_hwlat_print(struct trace_iterator *iter, int flags,
e7c15cd8 Steven Rostedt (Red Hat 2016-06-23 1155) struct trace_event *event)
e7c15cd8 Steven Rostedt (Red Hat 2016-06-23 1156) {
e7c15cd8 Steven Rostedt (Red Hat 2016-06-23 1157) struct trace_entry *entry = iter->ent;
e7c15cd8 Steven Rostedt (Red Hat 2016-06-23 1158) struct trace_seq *s = &iter->seq;
e7c15cd8 Steven Rostedt (Red Hat 2016-06-23 1159) struct hwlat_entry *field;
e7c15cd8 Steven Rostedt (Red Hat 2016-06-23 1160)
e7c15cd8 Steven Rostedt (Red Hat 2016-06-23 1161) trace_assign_type(field, entry);
e7c15cd8 Steven Rostedt (Red Hat 2016-06-23 1162)
df001907 Deepa Dinamani 2017-03-26 1163 trace_seq_printf(s, "#%-5u inner/outer(us): %4llu/%-5llu ts:%lld.%09ld",
e7c15cd8 Steven Rostedt (Red Hat 2016-06-23 1164) field->seqnum,
e7c15cd8 Steven Rostedt (Red Hat 2016-06-23 1165) field->duration,
e7c15cd8 Steven Rostedt (Red Hat 2016-06-23 1166) field->outer_duration,
e7c15cd8 Steven Rostedt (Red Hat 2016-06-23 1167) field->timestamp.tv_sec,
e7c15cd8 Steven Rostedt (Red Hat 2016-06-23 @1168) field->timestamp.tv_nsec);
e7c15cd8 Steven Rostedt (Red Hat 2016-06-23 1169)
7b2c8625 Steven Rostedt (Red Hat 2016-08-04 1170) if (field->nmi_count) {
7b2c8625 Steven Rostedt (Red Hat 2016-08-04 1171) /*
7b2c8625 Steven Rostedt (Red Hat 2016-08-04 1172) * The generic sched_clock() is not NMI safe, thus
7b2c8625 Steven Rostedt (Red Hat 2016-08-04 1173) * we only record the count and not the time.
7b2c8625 Steven Rostedt (Red Hat 2016-08-04 1174) */
7b2c8625 Steven Rostedt (Red Hat 2016-08-04 1175) if (!IS_ENABLED(CONFIG_GENERIC_SCHED_CLOCK))
7b2c8625 Steven Rostedt (Red Hat 2016-08-04 1176) trace_seq_printf(s, " nmi-total:%llu",

:::::: The code at line 1168 was first introduced by commit
:::::: e7c15cd8a113335cf7154f027c9c8da1a92238ee tracing: Added hardware latency tracer

:::::: TO: Steven Rostedt (Red Hat) <rostedt@goodmis.org>
:::::: CC: Steven Rostedt <rostedt@goodmis.org>

---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
[unhandled content-type:application/gzip]
\
 
 \ /
  Last update: 2017-03-27 12:08    [W:0.792 / U:0.196 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site