snd_pcm_lib_malloc_pages+0x33a/0x780 sound/core/pcm_memory.c:455 snd_pcm_hw_params+0x870/0x1d50 sound/core/pcm_native.c:828 snd_pcm_oss_change_params_locked+0x1e90/0x3c80 sound/core/oss/pcm_oss.c:967 snd_pcm_oss_change_params sound/core/oss/pcm_oss.c:1108 [inline] snd_pcm_oss_make_ready sound/core/oss/pcm_oss.c:1167 [inline] snd_pcm_oss_sync+0x43e/0xdf0 sound/core/oss/pcm_oss.c:1739 snd_pcm_oss_release+0xff/0x250 sound/core/oss/pcm_oss.c:2590 __fput+0x418/0xa50 fs/file_table.c:512 task_work_run+0x1d9/0x270 kernel/task_work.c:233 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x73a/0x2360 kernel/exit.c:1004 do_group_exit+0x22d/0x2f0 kernel/exit.c:1147 get_signal+0x121b/0x12c0 kernel/signal.c:3038 arch_do_signal_or_restart+0xbb/0x860 arch/x86/kernel/signal.c:337 __exit_to_user_mode_loop kernel/entry/common.c:66 [inline] exit_to_user_mode_loop+0x104/0x730 kernel/entry/common.c:101 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:318 [inline] do_syscall_64+0x353/0x580 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fbaf4f9ce59 Code: Unable to access opcode bytes at 0x7fbaf4f9ce2f. RSP: 002b:00007fbaf5f2c0a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: 0000000000000001 RBX: 00007fbaf5215fa8 RCX: 00007fbaf4f9ce59 RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fbaf5215fac RBP: 00007fbaf5215fa0 R08: 3fffffffffffffff R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007fbaf5216038 R14: 00007fff469fe200 R15: 00007fff469fe2e8 Mem-Info: active_anon:1526 inactive_anon:83 isolated_anon:0 active_file:3 inactive_file:39613 isolated_file:0 unevictable:1768 dirty:0 writeback:0 slab_reclaimable:7171 slab_unreclaimable:30797 mapped:1071 shmem:2293 pagetables:313 sec_pagetables:292 bounce:0 kernel_misc_reclaimable:0 free:55496 free_pcp:279 free_cma:0 Node 0 active_anon:4kB inactive_anon:0kB active_file:12kB inactive_file:4kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:16kB dirty:0kB writeback:0kB shmem:0kB shmem_thp:0kB shmem_pmdmapped:0kB anon_thp:0kB kernel_stack:2720kB pagetables:432kB sec_pagetables:1084kB all_unreclaimable? yes Balloon:0kB gpu_active:0kB gpu_reclaim:0kB Node 0 DMA free:1200kB boost:0kB min:760kB low:948kB high:1136kB reserved_highatomic:0KB free_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB zspages:0kB present:15992kB managed:15360kB mlocked:0kB bounce:0kB free_pcp:4kB local_pcp:4kB free_cma:0kB lowmem_reserve[]: 0 112 112 112 112 Node 0 DMA32 free:4288kB boost:0kB min:4296kB low:5368kB high:6440kB reserved_highatomic:0KB free_highatomic:0KB active_anon:4kB inactive_anon:0kB active_file:12kB inactive_file:4kB unevictable:0kB writepending:0kB zspages:0kB present:770052kB managed:115236kB mlocked:0kB bounce:0kB free_pcp:1112kB local_pcp:1112kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 0 Node 0 DMA: 0*4kB 0*8kB 1*16kB (U) 9*32kB (U) 2*64kB (U) 0*128kB 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 1200kB Node 0 DMA32: 6*4kB (ME) 9*8kB (ME) 16*16kB (ME) 7*32kB (ME) 4*64kB (UM) 5*128kB (UM) 3*256kB (UM) 2*512kB (UM) 1*1024kB (M) 0*2048kB 0*4096kB = 4288kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 0 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB 41933 total pagecache pages 25 pages in swap cache Free swap = 104804kB Total swap = 124996kB 393083 pages RAM 0 pages HighMem/MovableOnly 187731 pages reserved 0 pages cma reserved Out of memory and no killable processes... Kernel panic - not syncing: System is deadlocked on memory CPU: 0 UID: 0 PID: 5316 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: vpanic+0x56c/0xa60 kernel/panic.c:651 panic+0xc5/0xd0 kernel/panic.c:788 out_of_memory+0x13e5/0x1480 mm/oom_kill.c:1166 __alloc_pages_may_oom+0x1ea/0x330 mm/page_alloc.c:4116 __alloc_pages_slowpath+0x6e8/0xcc0 mm/page_alloc.c:4967 __alloc_frozen_pages_noprof+0x31f/0x380 mm/page_alloc.c:5317 alloc_pages_mpol+0x212/0x380 mm/mempolicy.c:2490 alloc_frozen_pages_noprof mm/mempolicy.c:2561 [inline] alloc_pages_noprof+0xac/0x2a0 mm/mempolicy.c:2581 vm_area_alloc_pages mm/vmalloc.c:3742 [inline] __vmalloc_area_node mm/vmalloc.c:3892 [inline] __vmalloc_node_range_noprof+0xe2b/0x1730 mm/vmalloc.c:4082 __vmalloc_node_noprof mm/vmalloc.c:4143 [inline] vmalloc_noprof+0xb2/0xe0 mm/vmalloc.c:4178 __snd_dma_alloc_pages sound/core/memalloc.c:45 [inline] snd_dma_alloc_dir_pages+0x120/0x220 sound/core/memalloc.c:79 do_alloc_pages+0x11c/0x260 sound/core/pcm_memory.c:69 snd_pcm_lib_malloc_pages+0x33a/0x780 sound/core/pcm_memory.c:455 snd_pcm_hw_params+0x870/0x1d50 sound/core/pcm_native.c:828 snd_pcm_oss_change_params_locked+0x1e90/0x3c80 sound/core/oss/pcm_oss.c:967 snd_pcm_oss_change_params sound/core/oss/pcm_oss.c:1108 [inline] snd_pcm_oss_make_ready sound/core/oss/pcm_oss.c:1167 [inline] snd_pcm_oss_sync+0x43e/0xdf0 sound/core/oss/pcm_oss.c:1739 snd_pcm_oss_release+0xff/0x250 sound/core/oss/pcm_oss.c:2590 __fput+0x418/0xa50 fs/file_table.c:512 task_work_run+0x1d9/0x270 kernel/task_work.c:233 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x73a/0x2360 kernel/exit.c:1004 do_group_exit+0x22d/0x2f0 kernel/exit.c:1147 get_signal+0x121b/0x12c0 kernel/signal.c:3038 arch_do_signal_or_restart+0xbb/0x860 arch/x86/kernel/signal.c:337 __exit_to_user_mode_loop kernel/entry/common.c:66 [inline] exit_to_user_mode_loop+0x104/0x730 kernel/entry/common.c:101 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:318 [inline] do_syscall_64+0x353/0x580 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fbaf4f9ce59 Code: Unable to access opcode bytes at 0x7fbaf4f9ce2f. RSP: 002b:00007fbaf5f2c0a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: 0000000000000001 RBX: 00007fbaf5215fa8 RCX: 00007fbaf4f9ce59 RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fbaf5215fac RBP: 00007fbaf5215fa0 R08: 3fffffffffffffff R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007fbaf5216038 R14: 00007fff469fe200 R15: 00007fff469fe2e8 Kernel Offset: disabled Rebooting in 86400 seconds.. loop0: detected capacity change from 0 to 32768 ======================================================= WARNING: The mand mount option has been deprecated and and is ignored by this kernel. Remove the mand option from the mount to silence this warning. ======================================================= JBD2: Ignoring recovery information on journal ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. (syz.0.0,5316,0):ocfs2_check_set_options:1243 ERROR: Invalid heartbeat mount options syz.0.0 (5316) used greatest stack depth: 18520 bytes left