[jimc:dd-drm-fix] [dyndbg] 80a26374d2: BUG:sleeping_function_called_from_invalid_context_at_include/linux/sched/mm.h

kernel test robot <[email protected]>
Newsgroups dev.linux.lists.oe-lkp
Message-ID <[email protected]> 

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 <[email protected]>
| Closes: https://lore.kernel.org/oe-lkp/[email protected]



[    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/[email protected]



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