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truncate spotted in mem i_size < btree i_size: 10 < 1048576
WARNING: CPU: 0 PID: 8055 at fs/bcachefs/fs-io.c:428 bchfs_truncate+0x998/0xa88 fs/bcachefs/fs-io.c:425
Modules linked in:
CPU: 0 UID: 0 PID: 8055 Comm: syz.0.193 Not tainted 6.12.0-syzkaller-g7b1d1d4cfac0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : bchfs_truncate+0x998/0xa88 fs/bcachefs/fs-io.c:425
lr : bchfs_truncate+0x998/0xa88 fs/bcachefs/fs-io.c:425
sp : ffff8000a3e677a0
x29: ffff8000a3e679c0 x28: ffff0000e3800000 x27: ffff0000dd530c10
x26: ffff0000dd530c18 x25: dfff800000000000 x24: ffff7000147ccf08
x23: 0000000000100000 x22: ffff0000dd530cd8 x21: 000000000000000a
x20: ffff800092ab5000 x19: ffff0000dd530780 x18: 0000000000000008
x17: 0000000000000000 x16: ffff8000830d1d70 x15: 0000000000000001
x14: 1fffe000366c68e2 x13: 0000000000000000 x12: 0000000000000000
x11: 0000000000080000 x10: 00000000000025e5 x9 : a790f5c3cb6e2600
x8 : a790f5c3cb6e2600 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff8000a3e66ed8 x4 : ffff80008f90d220 x3 : ffff800080626d8c
x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000000
Call trace:
 bchfs_truncate+0x998/0xa88 fs/bcachefs/fs-io.c:425 (P)
 bchfs_truncate+0x998/0xa88 fs/bcachefs/fs-io.c:425 (L)
 bch2_setattr+0x1a0/0x214 fs/bcachefs/fs.c:1163
 notify_change+0x9f0/0xca0 fs/attr.c:503
 do_truncate+0x1c0/0x28c fs/open.c:65
 vfs_truncate+0x2b8/0x360 fs/open.c:111
 do_sys_truncate+0xe8/0x1ac fs/open.c:134
 __do_sys_truncate fs/open.c:146 [inline]
 __se_sys_truncate fs/open.c:144 [inline]
 __arm64_sys_truncate+0x5c/0x70 fs/open.c:144
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744
 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
irq event stamp: 128
hardirqs last  enabled at (127): [<ffff80008039a9c4>] __up_console_sem kernel/printk/printk.c:344 [inline]
hardirqs last  enabled at (127): [<ffff80008039a9c4>] __console_unlock+0x70/0xc4 kernel/printk/printk.c:2844
hardirqs last disabled at (128): [<ffff80008b4b302c>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:488
softirqs last  enabled at (8): [<ffff80008002f3d8>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (6): [<ffff80008002f3a4>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
---[ end trace 0000000000000000 ]---