tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 7800ca95d0ed11b492962dc3abc2181c9d5f7f82 commit: 10216f78fecf705c4adea13afb9fe7f2f6bfc15e [11843/12015] Merge remote-tracking branch 'rust/rust-next' config: i386-randconfig-a012-20210906 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 6fe2beba7d2a41964af658c8c59dd172683ef739) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=10216f78fecf705c4adea13afb9fe7f2f6bfc15e git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 10216f78fecf705c4adea13afb9fe7f2f6bfc15e # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): >> kernel/trace/trace_events_hist.c:4713:13: error: stack frame size (1332) exceeds limit (1024) in function 'hist_trigger_print_key' [-Werror,-Wframe-larger-than] static void hist_trigger_print_key(struct seq_file *m, ^ 1 error generated. vim +/hist_trigger_print_key +4713 kernel/trace/trace_events_hist.c 69a0200c2e25d6 Tom Zanussi 2016-03-03 4712 a3785b7eca8fd4 Tom Zanussi 2019-02-13 @4713 static void hist_trigger_print_key(struct seq_file *m, a3785b7eca8fd4 Tom Zanussi 2019-02-13 4714 struct hist_trigger_data *hist_data, a3785b7eca8fd4 Tom Zanussi 2019-02-13 4715 void *key, 7ef224d1d0e3a1 Tom Zanussi 2016-03-03 4716 struct tracing_map_elt *elt) 7ef224d1d0e3a1 Tom Zanussi 2016-03-03 4717 { 7ef224d1d0e3a1 Tom Zanussi 2016-03-03 4718 struct hist_field *key_field; c6afad49d127f6 Tom Zanussi 2016-03-03 4719 char str[KSYM_SYMBOL_LEN]; 69a0200c2e25d6 Tom Zanussi 2016-03-03 4720 bool multiline = false; 85013256cf0162 Tom Zanussi 2017-09-22 4721 const char *field_name; 7ef224d1d0e3a1 Tom Zanussi 2016-03-03 4722 unsigned int i; 7ef224d1d0e3a1 Tom Zanussi 2016-03-03 4723 u64 uval; 7ef224d1d0e3a1 Tom Zanussi 2016-03-03 4724 7ef224d1d0e3a1 Tom Zanussi 2016-03-03 4725 seq_puts(m, "{ "); 7ef224d1d0e3a1 Tom Zanussi 2016-03-03 4726 7ef224d1d0e3a1 Tom Zanussi 2016-03-03 4727 for_each_hist_key_field(i, hist_data) { 7ef224d1d0e3a1 Tom Zanussi 2016-03-03 4728 key_field = hist_data->fields[i]; 7ef224d1d0e3a1 Tom Zanussi 2016-03-03 4729 7ef224d1d0e3a1 Tom Zanussi 2016-03-03 4730 if (i > hist_data->n_vals) 7ef224d1d0e3a1 Tom Zanussi 2016-03-03 4731 seq_puts(m, ", "); 7ef224d1d0e3a1 Tom Zanussi 2016-03-03 4732 85013256cf0162 Tom Zanussi 2017-09-22 4733 field_name = hist_field_name(key_field, 0); 85013256cf0162 Tom Zanussi 2017-09-22 4734 0c4a6b4666e8eb Tom Zanussi 2016-03-03 4735 if (key_field->flags & HIST_FIELD_FL_HEX) { 0c4a6b4666e8eb Tom Zanussi 2016-03-03 4736 uval = *(u64 *)(key + key_field->offset); 85013256cf0162 Tom Zanussi 2017-09-22 4737 seq_printf(m, "%s: %llx", field_name, uval); c6afad49d127f6 Tom Zanussi 2016-03-03 4738 } else if (key_field->flags & HIST_FIELD_FL_SYM) { c6afad49d127f6 Tom Zanussi 2016-03-03 4739 uval = *(u64 *)(key + key_field->offset); c6afad49d127f6 Tom Zanussi 2016-03-03 4740 sprint_symbol_no_offset(str, uval); 85013256cf0162 Tom Zanussi 2017-09-22 4741 seq_printf(m, "%s: [%llx] %-45s", field_name, 85013256cf0162 Tom Zanussi 2017-09-22 4742 uval, str); c6afad49d127f6 Tom Zanussi 2016-03-03 4743 } else if (key_field->flags & HIST_FIELD_FL_SYM_OFFSET) { c6afad49d127f6 Tom Zanussi 2016-03-03 4744 uval = *(u64 *)(key + key_field->offset); c6afad49d127f6 Tom Zanussi 2016-03-03 4745 sprint_symbol(str, uval); 85013256cf0162 Tom Zanussi 2017-09-22 4746 seq_printf(m, "%s: [%llx] %-55s", field_name, 85013256cf0162 Tom Zanussi 2017-09-22 4747 uval, str); 6b4827ad028a1a Tom Zanussi 2016-03-03 4748 } else if (key_field->flags & HIST_FIELD_FL_EXECNAME) { af6a29bcaf8ff2 Tom Zanussi 2018-01-15 4749 struct hist_elt_data *elt_data = elt->private_data; af6a29bcaf8ff2 Tom Zanussi 2018-01-15 4750 char *comm; af6a29bcaf8ff2 Tom Zanussi 2018-01-15 4751 af6a29bcaf8ff2 Tom Zanussi 2018-01-15 4752 if (WARN_ON_ONCE(!elt_data)) af6a29bcaf8ff2 Tom Zanussi 2018-01-15 4753 return; af6a29bcaf8ff2 Tom Zanussi 2018-01-15 4754 af6a29bcaf8ff2 Tom Zanussi 2018-01-15 4755 comm = elt_data->comm; 6b4827ad028a1a Tom Zanussi 2016-03-03 4756 6b4827ad028a1a Tom Zanussi 2016-03-03 4757 uval = *(u64 *)(key + key_field->offset); 85013256cf0162 Tom Zanussi 2017-09-22 4758 seq_printf(m, "%s: %-16s[%10llu]", field_name, 85013256cf0162 Tom Zanussi 2017-09-22 4759 comm, uval); 316961988b5ec7 Tom Zanussi 2016-03-03 4760 } else if (key_field->flags & HIST_FIELD_FL_SYSCALL) { 316961988b5ec7 Tom Zanussi 2016-03-03 4761 const char *syscall_name; 316961988b5ec7 Tom Zanussi 2016-03-03 4762 316961988b5ec7 Tom Zanussi 2016-03-03 4763 uval = *(u64 *)(key + key_field->offset); 316961988b5ec7 Tom Zanussi 2016-03-03 4764 syscall_name = get_syscall_name(uval); 316961988b5ec7 Tom Zanussi 2016-03-03 4765 if (!syscall_name) 316961988b5ec7 Tom Zanussi 2016-03-03 4766 syscall_name = "unknown_syscall"; 316961988b5ec7 Tom Zanussi 2016-03-03 4767 85013256cf0162 Tom Zanussi 2017-09-22 4768 seq_printf(m, "%s: %-30s[%3llu]", field_name, 85013256cf0162 Tom Zanussi 2017-09-22 4769 syscall_name, uval); 69a0200c2e25d6 Tom Zanussi 2016-03-03 4770 } else if (key_field->flags & HIST_FIELD_FL_STACKTRACE) { 69a0200c2e25d6 Tom Zanussi 2016-03-03 4771 seq_puts(m, "stacktrace:\n"); 69a0200c2e25d6 Tom Zanussi 2016-03-03 4772 hist_trigger_stacktrace_print(m, 69a0200c2e25d6 Tom Zanussi 2016-03-03 4773 key + key_field->offset, 69a0200c2e25d6 Tom Zanussi 2016-03-03 4774 HIST_STACKTRACE_DEPTH); 69a0200c2e25d6 Tom Zanussi 2016-03-03 4775 multiline = true; 4b94f5b7b4a5ff Namhyung Kim 2016-03-03 4776 } else if (key_field->flags & HIST_FIELD_FL_LOG2) { 85013256cf0162 Tom Zanussi 2017-09-22 4777 seq_printf(m, "%s: ~ 2^%-2llu", field_name, 4b94f5b7b4a5ff Namhyung Kim 2016-03-03 4778 *(u64 *)(key + key_field->offset)); de9a48a360b70d Steven Rostedt (VMware 2021-07-07 4779) } else if (key_field->flags & HIST_FIELD_FL_BUCKET) { de9a48a360b70d Steven Rostedt (VMware 2021-07-07 4780) unsigned long buckets = key_field->buckets; de9a48a360b70d Steven Rostedt (VMware 2021-07-07 4781) uval = *(u64 *)(key + key_field->offset); de9a48a360b70d Steven Rostedt (VMware 2021-07-07 4782) seq_printf(m, "%s: ~ %llu-%llu", field_name, de9a48a360b70d Steven Rostedt (VMware 2021-07-07 4783) uval, uval + buckets -1); 0c4a6b4666e8eb Tom Zanussi 2016-03-03 4784 } else if (key_field->flags & HIST_FIELD_FL_STRING) { 85013256cf0162 Tom Zanussi 2017-09-22 4785 seq_printf(m, "%s: %-50s", field_name, 76a3b0c8ac344e Tom Zanussi 2016-03-03 4786 (char *)(key + key_field->offset)); 7ef224d1d0e3a1 Tom Zanussi 2016-03-03 4787 } else { 76a3b0c8ac344e Tom Zanussi 2016-03-03 4788 uval = *(u64 *)(key + key_field->offset); 85013256cf0162 Tom Zanussi 2017-09-22 4789 seq_printf(m, "%s: %10llu", field_name, uval); 7ef224d1d0e3a1 Tom Zanussi 2016-03-03 4790 } 7ef224d1d0e3a1 Tom Zanussi 2016-03-03 4791 } 7ef224d1d0e3a1 Tom Zanussi 2016-03-03 4792 69a0200c2e25d6 Tom Zanussi 2016-03-03 4793 if (!multiline) 69a0200c2e25d6 Tom Zanussi 2016-03-03 4794 seq_puts(m, " "); 69a0200c2e25d6 Tom Zanussi 2016-03-03 4795 7ef224d1d0e3a1 Tom Zanussi 2016-03-03 4796 seq_puts(m, "}"); a3785b7eca8fd4 Tom Zanussi 2019-02-13 4797 } a3785b7eca8fd4 Tom Zanussi 2019-02-13 4798 :::::: The code at line 4713 was first introduced by commit :::::: a3785b7eca8fd45c7c39f2ddfcd67368af30c1b4 tracing: Add hist trigger snapshot() action :::::: TO: Tom Zanussi <tom.zanussi@xxxxxxxxxxxxxxx> :::::: CC: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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