* Re: [PATCH v5 2/2] blk-mq: expose tag starvation counts via debugfs
[not found] <20260427020142.358912-3-atomlin@atomlin.com>
@ 2026-05-09 0:12 ` kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2026-05-09 0:12 UTC (permalink / raw)
To: Aaron Tomlin, axboe, rostedt, mhiramat, mathieu.desnoyers
Cc: llvm, oe-kbuild-all, bvanassche, johannes.thumshirn, kch, dlemoal,
ritesh.list, loberman, neelx, sean, mproche, chjohnst,
linux-block, linux-kernel, linux-trace-kernel
Hi Aaron,
kernel test robot noticed the following build errors:
[auto build test ERROR on axboe/for-next]
[also build test ERROR on trace/for-next linus/master v7.1-rc2 next-20260508]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Aaron-Tomlin/blk-mq-add-tracepoint-block_rq_tag_wait/20260428-013259
base: https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux.git for-next
patch link: https://lore.kernel.org/r/20260427020142.358912-3-atomlin%40atomlin.com
patch subject: [PATCH v5 2/2] blk-mq: expose tag starvation counts via debugfs
config: x86_64-rhel-9.4-rust (https://download.01.org/0day-ci/archive/20260509/202605090233.BZVa3x9s-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
rustc: rustc 1.88.0 (6b00bc388 2025-06-23)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260509/202605090233.BZVa3x9s-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202605090233.BZVa3x9s-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from block/blk-core.c:45:
In file included from include/trace/events/block.h:726:
In file included from include/trace/define_trace.h:132:
In file included from include/trace/trace_events.h:468:
>> include/trace/events/block.h:255:47: error: expected ':'
255 | __entry->dev = q->disk ? disk_devt(q->disk);
| ^
| :
include/trace/stages/stage6_event_callback.h:133:33: note: expanded from macro 'TP_fast_assign'
133 | #define TP_fast_assign(args...) args
| ^
include/trace/trace_events.h:44:16: note: expanded from macro 'TRACE_EVENT'
44 | PARAMS(assign), \
| ^
include/linux/tracepoint.h:160:25: note: expanded from macro 'PARAMS'
160 | #define PARAMS(args...) args
| ^
include/trace/trace_events.h:435:16: note: expanded from macro 'DECLARE_EVENT_CLASS'
435 | PARAMS(assign), PARAMS(print)) \
| ^
include/linux/tracepoint.h:160:25: note: expanded from macro 'PARAMS'
160 | #define PARAMS(args...) args
| ^
include/trace/trace_events.h:427:4: note: expanded from macro '\
__DECLARE_EVENT_CLASS'
427 | { assign; } \
| ^
include/trace/events/block.h:255:27: note: to match this '?'
255 | __entry->dev = q->disk ? disk_devt(q->disk);
| ^
>> include/trace/events/block.h:255:47: error: expected expression
255 | __entry->dev = q->disk ? disk_devt(q->disk);
| ^
In file included from block/blk-core.c:45:
In file included from include/trace/events/block.h:726:
In file included from include/trace/define_trace.h:133:
In file included from include/trace/perf.h:110:
>> include/trace/events/block.h:255:47: error: expected ':'
255 | __entry->dev = q->disk ? disk_devt(q->disk);
| ^
| :
include/trace/stages/stage6_event_callback.h:133:33: note: expanded from macro 'TP_fast_assign'
133 | #define TP_fast_assign(args...) args
| ^
include/trace/trace_events.h:44:16: note: expanded from macro 'TRACE_EVENT'
44 | PARAMS(assign), \
| ^
include/linux/tracepoint.h:160:25: note: expanded from macro 'PARAMS'
160 | #define PARAMS(args...) args
| ^
include/trace/perf.h:67:16: note: expanded from macro 'DECLARE_EVENT_CLASS'
67 | PARAMS(assign), PARAMS(print)) \
| ^
include/linux/tracepoint.h:160:25: note: expanded from macro 'PARAMS'
160 | #define PARAMS(args...) args
| ^
include/trace/perf.h:51:4: note: expanded from macro '\
__DECLARE_EVENT_CLASS'
51 | { assign; } \
| ^
include/trace/events/block.h:255:27: note: to match this '?'
255 | __entry->dev = q->disk ? disk_devt(q->disk);
| ^
>> include/trace/events/block.h:255:47: error: expected expression
255 | __entry->dev = q->disk ? disk_devt(q->disk);
| ^
4 errors generated.
vim +255 include/trace/events/block.h
242
243 TP_PROTO(struct request_queue *q, struct blk_mq_hw_ctx *hctx, bool is_sched_tag),
244
245 TP_ARGS(q, hctx, is_sched_tag),
246
247 TP_STRUCT__entry(
248 __field( dev_t, dev )
249 __field( u32, hctx_id )
250 __field( u32, nr_tags )
251 __field( bool, is_sched_tag )
252 ),
253
254 TP_fast_assign(
> 255 __entry->dev = q->disk ? disk_devt(q->disk);
256 __entry->hctx_id = hctx->queue_num;
257 __entry->is_sched_tag = is_sched_tag;
258
259 if (is_sched_tag)
260 __entry->nr_tags = hctx->sched_tags->nr_tags;
261 else
262 __entry->nr_tags = hctx->tags->nr_tags;
263 ),
264
265 TP_printk("%d,%d hctx=%u starved on %s tags (depth=%u)",
266 MAJOR(__entry->dev), MINOR(__entry->dev),
267 __entry->hctx_id,
268 __entry->is_sched_tag ? "scheduler" : "hardware",
269 __entry->nr_tags)
270 );
271
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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