=============================
[ BUG: Invalid wait context ]
syzkaller #0 Not tainted
-----------------------------
kswapd0/75 is trying to lock:
ffff888011cb5bb0 (&gpc->lock){....}-{3:3}, at: kvm_xen_set_evtchn_fast+0x1f4/0x9a0 arch/x86/kvm/xen.c:1822
other info that might help us debug this:
context-{2:2}
4 locks held by kswapd0/75:
 #0: ffffffff8ec86cc0 (fs_reclaim){+.+.}-{0:0}, at: balance_pgdat mm/vmscan.c:7084 [inline]
 #0: ffffffff8ec86cc0 (fs_reclaim){+.+.}-{0:0}, at: kswapd+0x9b6/0x31c0 mm/vmscan.c:7462
 #1: ffffe8ffffc3af28 (&acomp_ctx->mutex){+.+.}-{4:4}, at: zswap_compress mm/zswap.c:853 [inline]
 #1: ffffe8ffffc3af28 (&acomp_ctx->mutex){+.+.}-{4:4}, at: zswap_store_page mm/zswap.c:1410 [inline]
 #1: ffffe8ffffc3af28 (&acomp_ctx->mutex){+.+.}-{4:4}, at: zswap_store+0xcb7/0x2050 mm/zswap.c:1521
 #2: ffffe8ffffc3af68 (&ps->lock){+...}-{3:3}, at: spin_lock_bh include/linux/spinlock.h:348 [inline]
 #2: ffffe8ffffc3af68 (&ps->lock){+...}-{3:3}, at: _crypto_acomp_lock_stream_bh+0x8f/0x220 crypto/acompress.c:450
 #3: ffff888011cb6110 (&kvm->srcu){.?.+}-{0:0}, at: srcu_lock_acquire include/linux/srcu.h:187 [inline]
 #3: ffff888011cb6110 (&kvm->srcu){.?.+}-{0:0}, at: srcu_read_lock include/linux/srcu.h:294 [inline]
 #3: ffff888011cb6110 (&kvm->srcu){.?.+}-{0:0}, at: kvm_xen_set_evtchn_fast+0x1bc/0x9a0 arch/x86/kvm/xen.c:1820
stack backtrace:
CPU: 0 UID: 0 PID: 75 Comm: kswapd0 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:
 <IRQ>
 dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
 print_lock_invalid_wait_context kernel/locking/lockdep.c:4830 [inline]
 check_wait_context kernel/locking/lockdep.c:4902 [inline]
 __lock_acquire+0xe39/0x2cf0 kernel/locking/lockdep.c:5187
 lock_acquire+0x106/0x350 kernel/locking/lockdep.c:5868
 __raw_read_lock_irqsave include/linux/rwlock_api_smp.h:174 [inline]
 _raw_read_lock_irqsave+0x48/0x60 kernel/locking/spinlock.c:240
 kvm_xen_set_evtchn_fast+0x1f4/0x9a0 arch/x86/kvm/xen.c:1822
 xen_timer_callback+0x109/0x220 arch/x86/kvm/xen.c:140
 __run_hrtimer kernel/time/hrtimer.c:2032 [inline]
 __hrtimer_run_queues+0x371/0xa10 kernel/time/hrtimer.c:2096
 hrtimer_interrupt+0x448/0x910 kernel/time/hrtimer.c:2215
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1051 [inline]
 __sysvec_apic_timer_interrupt+0x102/0x430 arch/x86/kernel/apic/apic.c:1068
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
 sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1062
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x70 kernel/kcov.c:210
Code: 89 fb e8 23 00 00 00 48 8b 3d 74 ed 88 0c 48 89 de 5b e9 13 a9 63 00 cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 48 8b 04 24 65 48 8b 0d 18 dd a6 11 65 8b 15 39 dd a6
RSP: 0000:ffffc90000cde6c0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 000000000000c37f RCX: 0000000000000000
RDX: ffff8880404a0044 RSI: 0000000000000000 RDI: ffff8880404add08
RBP: ffff8880404add08 R08: ffff8880404add07 R09: 0000000000000000
R10: ffff8880404adcf8 R11: ffffed1008095ba1 R12: dffffc0000000000
R13: ffff8880404adcf8 R14: ffff8880404a0000 R15: 1ffff11008095ba1
 arch_static_branch arch/x86/include/asm/jump_label.h:37 [inline]
 update_hashtables lib/842/842_compress.c:435 [inline]
 sw842_compress+0x2bca/0x4830 lib/842/842_compress.c:552
 scomp_acomp_comp_decomp+0x78f/0xab0 crypto/scompress.c:-1
 crypto_acomp_compress+0x4c7/0xbd0 crypto/acompress.c:285
 zswap_compress mm/zswap.c:874 [inline]
 zswap_store_page mm/zswap.c:1410 [inline]
 zswap_store+0xe3a/0x2050 mm/zswap.c:1521
 swap_writeout+0x96a/0x14d0 mm/page_io.c:285
 pageout mm/vmscan.c:657 [inline]
 shrink_folio_list+0x35bd/0x5330 mm/vmscan.c:1397
 evict_folios+0x3821/0x49e0 mm/vmscan.c:4834
 try_to_shrink_lruvec+0xb4f/0xed0 mm/vmscan.c:4983
 shrink_one+0x233/0x730 mm/vmscan.c:5024
 shrink_many mm/vmscan.c:5087 [inline]
 lru_gen_shrink_node mm/vmscan.c:5165 [inline]
 shrink_node+0x3303/0x3b60 mm/vmscan.c:6154
 kswapd_shrink_node mm/vmscan.c:7008 [inline]
 balance_pgdat mm/vmscan.c:7186 [inline]
 kswapd+0x17b6/0x31c0 mm/vmscan.c:7462
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
----------------
Code disassembly (best guess):
   0:	89 fb                	mov    %edi,%ebx
   2:	e8 23 00 00 00       	call   0x2a
   7:	48 8b 3d 74 ed 88 0c 	mov    0xc88ed74(%rip),%rdi        # 0xc88ed82
   e:	48 89 de             	mov    %rbx,%rsi
  11:	5b                   	pop    %rbx
  12:	e9 13 a9 63 00       	jmp    0x63a92a
  17:	cc                   	int3
  18:	cc                   	int3
  19:	cc                   	int3
  1a:	90                   	nop
  1b:	90                   	nop
  1c:	90                   	nop
  1d:	90                   	nop
  1e:	90                   	nop
  1f:	90                   	nop
  20:	90                   	nop
  21:	90                   	nop
  22:	90                   	nop
  23:	90                   	nop
  24:	90                   	nop
  25:	90                   	nop
  26:	90                   	nop
  27:	90                   	nop
  28:	90                   	nop
  29:	90                   	nop
* 2a:	f3 0f 1e fa          	endbr64 <-- trapping instruction
  2e:	48 8b 04 24          	mov    (%rsp),%rax
  32:	65 48 8b 0d 18 dd a6 	mov    %gs:0x11a6dd18(%rip),%rcx        # 0x11a6dd52
  39:	11
  3a:	65                   	gs
  3b:	8b                   	.byte 0x8b
  3c:	15                   	.byte 0x15
  3d:	39 dd                	cmp    %ebx,%ebp
  3f:	a6                   	cmpsb  %es:(%rdi),%ds:(%rsi)