hrtimer: interrupt took 16948342162 ns
rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-...!: (1 ticks this GP) idle=6694/1/0x4000000000000000 softirq=9681/9681 fqs=0
rcu: 	(t=22330 jiffies g=8093 q=2660 ncpus=2)
rcu: rcu_preempt kthread timer wakeup didn't happen for 22329 jiffies! g8093 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=1 timer-softirq=4475
rcu: rcu_preempt kthread starved for 22330 jiffies! g8093 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:I stack:25784 pid:15    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5381 [inline]
 __schedule+0x1873/0x48f0 kernel/sched/core.c:6710
 schedule+0xc3/0x180 kernel/sched/core.c:6786
 schedule_timeout+0x1bd/0x310 kernel/time/timer.c:2167
 rcu_gp_fqs_loop+0x2c6/0x1010 kernel/rcu/tree.c:1609
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:1808
 kthread+0x2b8/0x350 kernel/kthread.c:389
 ret_from_fork+0x2e/0x60 arch/x86/kernel/process.c:145
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 PID: 1071 Comm: kworker/u4:5 Not tainted 6.5.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
Workqueue: writeback wb_workfn (flush-8:0)
RIP: 0010:PagePoisoned include/linux/page-flags.h:296 [inline]
RIP: 0010:page_to_nid include/linux/mm.h:1595 [inline]
RIP: 0010:page_zone include/linux/mm.h:1809 [inline]
RIP: 0010:folio_zone include/linux/mm.h:1819 [inline]
RIP: 0010:zone_stat_mod_folio include/linux/vmstat.h:439 [inline]
RIP: 0010:folio_clear_dirty_for_io+0x629/0xcc0 mm/page-writeback.c:2931
Code: 48 8b 3b 48 83 c7 08 e8 f5 7d 03 09 e9 11 fd ff ff e8 cb 50 cc ff e8 a6 66 f9 08 4d 85 ed 74 b1 e8 bc 50 cc ff fb 4c 8b 2c 24 <48> b8 00 00 00 00 00 fc ff df 48 8b 4c 24 08 80 3c 01 00 74 08 4c
RSP: 0018:ffffc900055feca0 EFLAGS: 00000293
RAX: ffffffff81be0cd4 RBX: 0000000000000000 RCX: ffff888020cb0000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900055feda0 R08: ffffffff81be0c71 R09: 1ffffffff20f2e54
R10: dffffc0000000000 R11: fffffbfff20f2e55 R12: ffffea0001d1ea40
R13: ffffffffffffffff R14: 0000000000000046 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffcf7789e98 CR3: 000000002bec0000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 mpage_submit_folio+0x87/0x430 fs/ext4/inode.c:1846
 mpage_map_and_submit_buffers fs/ext4/inode.c:2111 [inline]
 mpage_map_and_submit_extent fs/ext4/inode.c:2251 [inline]
 ext4_do_writepages+0x1dfb/0x3da0 fs/ext4/inode.c:2677
 ext4_writepages+0x203/0x3e0 fs/ext4/inode.c:2766
 do_writepages+0x3a6/0x670 mm/page-writeback.c:2553
 __writeback_single_inode+0x155/0xfa0 fs/fs-writeback.c:1603
 writeback_sb_inodes+0x8e3/0x11d0 fs/fs-writeback.c:1894
 __writeback_inodes_wb+0x11b/0x260 fs/fs-writeback.c:1965
 wb_writeback+0x461/0xc60 fs/fs-writeback.c:2072
 wb_check_old_data_flush fs/fs-writeback.c:2176 [inline]
 wb_do_writeback fs/fs-writeback.c:2229 [inline]
 wb_workfn+0xbb5/0xff0 fs/fs-writeback.c:2257
 process_one_work+0x92c/0x12c0 kernel/workqueue.c:2597
 worker_thread+0xa63/0x1210 kernel/workqueue.c:2748
 kthread+0x2b8/0x350 kernel/kthread.c:389
 ret_from_fork+0x2e/0x60 arch/x86/kernel/process.c:145
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
 </TASK>
CPU: 1 PID: 1071 Comm: kworker/u4:5 Not tainted 6.5.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
Workqueue: writeback wb_workfn (flush-8:0)
RIP: 0010:PagePoisoned include/linux/page-flags.h:296 [inline]
RIP: 0010:page_to_nid include/linux/mm.h:1595 [inline]
RIP: 0010:page_zone include/linux/mm.h:1809 [inline]
RIP: 0010:folio_zone include/linux/mm.h:1819 [inline]
RIP: 0010:zone_stat_mod_folio include/linux/vmstat.h:439 [inline]
RIP: 0010:folio_clear_dirty_for_io+0x629/0xcc0 mm/page-writeback.c:2931
Code: 48 8b 3b 48 83 c7 08 e8 f5 7d 03 09 e9 11 fd ff ff e8 cb 50 cc ff e8 a6 66 f9 08 4d 85 ed 74 b1 e8 bc 50 cc ff fb 4c 8b 2c 24 <48> b8 00 00 00 00 00 fc ff df 48 8b 4c 24 08 80 3c 01 00 74 08 4c
RSP: 0018:ffffc900055feca0 EFLAGS: 00000293
RAX: ffffffff81be0cd4 RBX: 0000000000000000 RCX: ffff888020cb0000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900055feda0 R08: ffffffff81be0c71 R09: 1ffffffff20f2e54
R10: dffffc0000000000 R11: fffffbfff20f2e55 R12: ffffea0001d1ea40
R13: ffffffffffffffff R14: 0000000000000046 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffcf7789e98 CR3: 000000002bec0000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 mpage_submit_folio+0x87/0x430 fs/ext4/inode.c:1846
 mpage_map_and_submit_buffers fs/ext4/inode.c:2111 [inline]
 mpage_map_and_submit_extent fs/ext4/inode.c:2251 [inline]
 ext4_do_writepages+0x1dfb/0x3da0 fs/ext4/inode.c:2677
 ext4_writepages+0x203/0x3e0 fs/ext4/inode.c:2766
 do_writepages+0x3a6/0x670 mm/page-writeback.c:2553
 __writeback_single_inode+0x155/0xfa0 fs/fs-writeback.c:1603
 writeback_sb_inodes+0x8e3/0x11d0 fs/fs-writeback.c:1894
 __writeback_inodes_wb+0x11b/0x260 fs/fs-writeback.c:1965
 wb_writeback+0x461/0xc60 fs/fs-writeback.c:2072
 wb_check_old_data_flush fs/fs-writeback.c:2176 [inline]
 wb_do_writeback fs/fs-writeback.c:2229 [inline]
 wb_workfn+0xbb5/0xff0 fs/fs-writeback.c:2257
 process_one_work+0x92c/0x12c0 kernel/workqueue.c:2597
 worker_thread+0xa63/0x1210 kernel/workqueue.c:2748
 kthread+0x2b8/0x350 kernel/kthread.c:389
 ret_from_fork+0x2e/0x60 arch/x86/kernel/process.c:145
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
 </TASK>