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truncate spotted in mem i_size < btree i_size: 10 < 1048576
WARNING: CPU: 1 PID: 8511 at fs/bcachefs/fs-io.c:428 bchfs_truncate+0x998/0xa88 fs/bcachefs/fs-io.c:425
Modules linked in:
CPU: 1 UID: 0 PID: 8511 Comm: syz.3.357 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 : ffff80009c1172e0
x29: ffff80009c117500 x28: ffff0000f6980000 x27: ffff0000dd6c8490
x26: ffff0000dd6c8498 x25: dfff800000000000 x24: ffff700013822e70
x23: 0000000000100000 x22: ffff0000dd6c8558 x21: 000000000000000a
x20: ffff800092b74000 x19: ffff0000dd6c8000 x18: ffff80009c116b20
x17: 0000000000045da5 x16: ffff800080355c58 x15: 0000000000000001
x14: 1ffff0001203e08e x13: ffff80009c118000 x12: 0000000000000003
x11: 0000000000080000 x10: 0000000000000003 x9 : f9a621e09739f600
x8 : f9a621e09739f600 x7 : ffff80008005e120 x6 : ffff80008005e31c
x5 : ffff0000f09b48a8 x4 : ffff80009c116c78 x3 : 0000000000000000
x2 : 0000000000000006 x1 : ffff80008b6c4000 x0 : ffff800123e21000
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
 handle_truncate fs/namei.c:3395 [inline]
 do_open fs/namei.c:3778 [inline]
 path_openat+0x2494/0x2b14 fs/namei.c:3933
 do_filp_open+0x1bc/0x3cc fs/namei.c:3960
 do_sys_openat2+0x124/0x1b8 fs/open.c:1415
 do_sys_open fs/open.c:1430 [inline]
 __do_sys_openat fs/open.c:1446 [inline]
 __se_sys_openat fs/open.c:1441 [inline]
 __arm64_sys_openat+0x1f0/0x240 fs/open.c:1441
 __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: 162
hardirqs last  enabled at (161): [<ffff8000803fe3bc>] __call_rcu_common kernel/rcu/tree.c:3108 [inline]
hardirqs last  enabled at (161): [<ffff8000803fe3bc>] call_rcu+0x640/0xb00 kernel/rcu/tree.c:3190
hardirqs last disabled at (162): [<ffff80008b54386c>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:488
softirqs last  enabled at (144): [<ffff80008020396c>] softirq_handle_end kernel/softirq.c:400 [inline]
softirqs last  enabled at (144): [<ffff80008020396c>] handle_softirqs+0xa38/0xbf8 kernel/softirq.c:582
softirqs last disabled at (135): [<ffff800080020db4>] __do_softirq+0x14/0x20 kernel/softirq.c:588
---[ end trace 0000000000000000 ]---