* [jimc:dd-drm-fix] [dyndbg] 80a26374d2: BUG:sleeping_function_called_from_invalid_context_at_include/linux/sched/mm.h
@ 2026-01-28 14:12 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2026-01-28 14:12 UTC (permalink / raw)
To: Jim Cromie, Łukasz Bartosik; +Cc: oe-lkp, lkp, oliver.sang
Hello,
kernel test robot noticed "BUG:sleeping_function_called_from_invalid_context_at_include/linux/sched/mm.h" on:
commit: 80a26374d24c6a7ca964ad427e3a54852f0803b8 ("dyndbg: walk dd_mod_map intervals in dynamic_debug_init()")
https://github.com/jimc/linux.git dd-drm-fix
in testcase: boot
config: i386-randconfig-012-20260127
compiler: gcc-12
test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 32G
(please refer to attached dmesg/kmsg for entire log/backtrace)
+-------------------------------------------------------------------------------+------------+------------+
| | bd091f80c8 | 80a26374d2 |
+-------------------------------------------------------------------------------+------------+------------+
| BUG:sleeping_function_called_from_invalid_context_at_include/linux/sched/mm.h | 0 | 12 |
+-------------------------------------------------------------------------------+------------+------------+
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 <oliver.sang@intel.com>
| Closes: https://lore.kernel.org/oe-lkp/202601282112.3e252f09-lkp@intel.com
[ 0.666972][ T1] BUG: sleeping function called from invalid context at include/linux/sched/mm.h:323
[ 0.668055][ T1] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 1, name: swapper/0
[ 0.669517][ T1] preempt_count: 0, expected: 0
[ 0.670309][ T1] RCU nest depth: 1, expected: 0
[ 0.671155][ T1] 1 lock held by swapper/0/1:
[ 0.672117][ T1] #0: b2887bcc (rcu_read_lock){....}-{1:3}, at: dynamic_debug_init (lib/dynamic_debug.c:1797)
[ 0.673765][ T1] CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.19.0-rc7-00040-g80a26374d24c #1 PREEMPT(lazy) e69b6cee1a878dce1581dfa5f5bb5383e6db0395
[ 0.676021][ T1] Call Trace:
[ 0.676021][ T1] dump_stack_lvl (lib/dump_stack.c:123 (discriminator 1))
[ 0.676021][ T1] dump_stack (lib/dump_stack.c:130)
[ 0.676021][ T1] __might_resched (kernel/sched/core.c:8830)
[ 0.676021][ T1] ? mtree_store_range (lib/maple_tree.c:5938)
[ 0.676021][ T1] __might_sleep (kernel/sched/core.c:8759 (discriminator 17))
[ 0.676021][ T1] __kmalloc_cache_noprof (include/linux/kernel.h:61 include/linux/sched/mm.h:323 mm/slub.c:4904 mm/slub.c:5239 mm/slub.c:5775)
[ 0.676021][ T1] ? ddebug_add_module (include/linux/slab.h:957 (discriminator 3) include/linux/slab.h:1094 (discriminator 3) lib/dynamic_debug.c:1577 (discriminator 3))
[ 0.676021][ T1] ddebug_add_module (include/linux/slab.h:957 (discriminator 3) include/linux/slab.h:1094 (discriminator 3) lib/dynamic_debug.c:1577 (discriminator 3))
[ 0.676021][ T1] dynamic_debug_init (lib/dynamic_debug.c:1811)
[ 0.676021][ T1] ? dynamic_debug_init_control (lib/dynamic_debug.c:1769)
[ 0.676021][ T1] do_one_initcall (init/main.c:1378)
[ 0.676021][ T1] ? __register_sysctl_init (fs/proc/proc_sysctl.c:1467)
[ 0.676021][ T1] ? rest_init (init/main.c:1570)
[ 0.676021][ T1] ? init_mm_internals (mm/vmstat.c:2304)
[ 0.676021][ T1] ? rest_init (init/main.c:1570)
[ 0.676021][ T1] kernel_init_freeable (init/main.c:1483 init/main.c:1677)
[ 0.676021][ T1] kernel_init (init/main.c:1580)
[ 0.676021][ T1] ret_from_fork (arch/x86/kernel/process.c:164)
[ 0.676021][ T1] ? rest_init (init/main.c:1570)
[ 0.676021][ T1] ret_from_fork_asm (arch/x86/entry/entry_32.S:737)
[ 0.676021][ T1] entry_INT80_32 (arch/x86/entry/entry_32.S:945)
[ 0.676134][ T1]
[ 0.676575][ T1] =============================
[ 0.677188][ T1] [ BUG: Invalid wait context ]
[ 0.677997][ T1] 6.19.0-rc7-00040-g80a26374d24c #1 Tainted: G W
[ 0.679361][ T1] -----------------------------
[ 0.680021][ T1] swapper/0/1 is trying to lock:
[ 0.680021][ T1] b29409d4 (ddebug_lock){....}-{4:4}, at: ddebug_add_module (include/linux/list.h:191 lib/dynamic_debug.c:1601)
[ 0.680021][ T1] other info that might help us debug this:
[ 0.680021][ T1] context-{5:5}
[ 0.680021][ T1] 1 lock held by swapper/0/1:
[ 0.680021][ T1] #0: b2887bcc (rcu_read_lock){....}-{1:3}, at: dynamic_debug_init (lib/dynamic_debug.c:1797)
[ 0.680021][ T1] stack backtrace:
[ 0.680021][ T1] CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Tainted: G W 6.19.0-rc7-00040-g80a26374d24c #1 PREEMPT(lazy) e69b6cee1a878dce1581dfa5f5bb5383e6db0395
[ 0.680021][ T1] Tainted: [W]=WARN
[ 0.680021][ T1] Call Trace:
[ 0.680021][ T1] dump_stack_lvl (lib/dump_stack.c:124)
[ 0.680021][ T1] dump_stack (lib/dump_stack.c:130)
[ 0.680021][ T1] __lock_acquire (kernel/locking/lockdep.c:4832 kernel/locking/lockdep.c:4902 kernel/locking/lockdep.c:5187)
[ 0.680021][ T1] ? trace_preempt_on (kernel/trace/trace_preemptirq.c:122)
[ 0.680021][ T1] lock_acquire (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 0.680021][ T1] ? ddebug_add_module (include/linux/list.h:191 lib/dynamic_debug.c:1601)
[ 0.680021][ T1] ? __mutex_lock (kernel/locking/mutex.c:614 kernel/locking/mutex.c:776)
[ 0.680021][ T1] __mutex_lock (arch/x86/include/asm/jump_label.h:37 include/trace/events/lock.h:95 kernel/locking/mutex.c:616 kernel/locking/mutex.c:776)
[ 0.680021][ T1] ? ddebug_add_module (include/linux/list.h:191 lib/dynamic_debug.c:1601)
[ 0.680021][ T1] ? ddebug_condense_sites (lib/dynamic_debug.c:1555)
[ 0.680021][ T1] ? ddebug_get_filename (lib/dynamic_debug.c:1520)
[ 0.680021][ T1] mutex_lock_nested (kernel/locking/mutex.c:829)
[ 0.680021][ T1] ? ddebug_add_module (include/linux/list.h:191 lib/dynamic_debug.c:1601)
[ 0.680021][ T1] ddebug_add_module (include/linux/list.h:191 lib/dynamic_debug.c:1601)
[ 0.680021][ T1] dynamic_debug_init (lib/dynamic_debug.c:1811)
[ 0.680021][ T1] ? dynamic_debug_init_control (lib/dynamic_debug.c:1769)
[ 0.680021][ T1] do_one_initcall (init/main.c:1378)
[ 0.680021][ T1] ? __register_sysctl_init (fs/proc/proc_sysctl.c:1467)
[ 0.680021][ T1] ? rest_init (init/main.c:1570)
[ 0.680021][ T1] ? init_mm_internals (mm/vmstat.c:2304)
[ 0.680021][ T1] ? rest_init (init/main.c:1570)
[ 0.680021][ T1] kernel_init_freeable (init/main.c:1483 init/main.c:1677)
[ 0.680021][ T1] kernel_init (init/main.c:1580)
[ 0.680021][ T1] ret_from_fork (arch/x86/kernel/process.c:164)
[ 0.680021][ T1] ? rest_init (init/main.c:1570)
[ 0.680021][ T1] ret_from_fork_asm (arch/x86/entry/entry_32.S:737)
[ 0.680021][ T1] entry_INT80_32 (arch/x86/entry/entry_32.S:945)
[ 0.684801][ T1] Memory: 2985172K/3145208K available (15891K kernel code, 5186K rwdata, 5772K rodata, 1056K init, 7324K bss, 154192K reserved, 0K cma-reserved, 1978248K highmem)
[ 0.688021][ T1] devtmpfs: initialized
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20260128/202601282112.3e252f09-lkp@intel.com
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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2026-01-28 14:12 [jimc:dd-drm-fix] [dyndbg] 80a26374d2: BUG:sleeping_function_called_from_invalid_context_at_include/linux/sched/mm.h kernel test robot
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