BTRFS info (device loop4): enabling ssd optimizations BTRFS info (device loop4): auto enabling async discard ------------[ cut here ]------------ WARNING: CPU: 1 PID: 24183 at fs/read_write.c:504 __kernel_write_iter+0x51c/0x620 Modules linked in: CPU: 1 PID: 24183 Comm: syz-executor.4 Not tainted 6.6.0-rc7-syzkaller-g8de1e7afcc1c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __kernel_write_iter+0x51c/0x620 lr : __kernel_write_iter+0x518/0x620 fs/read_write.c:504 sp : ffff800097e974c0 x29: ffff800097e975a0 x28: ffff700012fd2ea0 x27: ffff800097e97640 x26: dfff800000000000 x25: fffffffffffffff7 x24: 1fffe00018f4f99a x23: ffff0000c7a7ccd0 x22: ffff0000cd316008 x21: dfff800000000000 x20: ffff0000c7a7cc80 x19: 00000000000a801d x18: 0000000000000000 x17: 0000000000000000 x16: ffff80008a668b40 x15: 0000000000000005 x14: 1ffff00012fd2ec8 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000 x8 : ffff0000ce38b780 x7 : 0000000000000000 x6 : 74732d7366727462 x5 : ffff800097e979cd x4 : 0000000000000011 x3 : 0000000000000001 x2 : ffff0000cd316008 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: __kernel_write_iter+0x51c/0x620 __kernel_write fs/read_write.c:537 [inline] kernel_write+0x1b0/0x2f0 fs/read_write.c:558 write_buf fs/btrfs/send.c:648 [inline] send_header fs/btrfs/send.c:766 [inline] send_subvol+0x174/0x3dc8 fs/btrfs/send.c:7936 btrfs_ioctl_send+0x1ba4/0x21cc fs/btrfs/send.c:8312 _btrfs_ioctl_send+0x314/0x468 fs/btrfs/ioctl.c:4364 btrfs_ioctl+0x638/0xb08 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:871 [inline] __se_sys_ioctl fs/ioctl.c:857 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:857 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155 el0_svc+0x54/0x158 arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595 irq event stamp: 77326 hardirqs last enabled at (77325): [] ___slab_alloc+0xc20/0xdf4 mm/slub.c:3175 hardirqs last disabled at (77326): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:436 softirqs last enabled at (77290): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (77288): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]---