From ac6772e8bcdaaaf3605e306859b54d821efef7fd Mon Sep 17 00:00:00 2001 From: Andrea Righi Date: Thu, 18 Sep 2025 19:06:02 +0200 Subject: [PATCH] sched_ext: Add migration-disabled counter to error state dump Include the task's migration-disabled counter when dumping task state during an error exit. This can help diagnose cases where tasks can get stuck, because they're unable to migrate elsewhere. tj: s/nomig/no_mig/ for readability and consistency with other keys. Signed-off-by: Andrea Righi Signed-off-by: Tejun Heo --- kernel/sched/ext.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/sched/ext.c b/kernel/sched/ext.c index 477eccf023388..f5873f8ed669a 100644 --- a/kernel/sched/ext.c +++ b/kernel/sched/ext.c @@ -4167,7 +4167,8 @@ static void scx_dump_task(struct seq_buf *s, struct scx_dump_ctx *dctx, p->scx.sticky_cpu, p->scx.holding_cpu, dsq_id_buf); dump_line(s, " dsq_vtime=%llu slice=%llu weight=%u", p->scx.dsq_vtime, p->scx.slice, p->scx.weight); - dump_line(s, " cpus=%*pb", cpumask_pr_args(p->cpus_ptr)); + dump_line(s, " cpus=%*pb no_mig=%u", cpumask_pr_args(p->cpus_ptr), + p->migration_disabled); if (SCX_HAS_OP(sch, dump_task)) { ops_dump_init(s, " "); -- 2.47.3