On Thu, Jan 13, 2022 at 12:12:52PM -0800, Randy Dunlap wrote:
> [ 1.561983] UBSAN: invalid-load in ../mm/swap.c:996:11
> [ 1.561986] load of value 221 is not a valid value for type '_Bool'
Ooh. This one's mine. Randy, does it repeat easily? This should
fix it:
diff --git a/include/linux/pagevec.h b/include/linux/pagevec.h
index dda8d5868c81..67b1246f136b 100644
--- a/include/linux/pagevec.h
+++ b/include/linux/pagevec.h
@@ -111,6 +111,7 @@ static_assert(offsetof(struct pagevec, pages) ==
static inline void folio_batch_init(struct folio_batch *fbatch)
{
fbatch->nr = 0;
+ fbatch->percpu_pvec_drained = false;
}
static inline unsigned int folio_batch_count(struct folio_batch *fbatch)
> [ 1.561988] CPU: 1 PID: 7 Comm: kworker/u16:0 Not tainted 5.16.0-next-20220113 #1
> [ 1.561992] Hardware name: TOSHIBA PORTEGE R835/Portable PC, BIOS Version 4.10 01/08/2013
> [ 1.561994] Workqueue: events_unbound async_run_entry_fn
> [ 1.562001] Call Trace:
> [ 1.562003] <TASK>
> [ 1.562004] dump_stack_lvl+0x38/0x49
> [ 1.562010] dump_stack+0x10/0x12
> [ 1.562014] ubsan_epilogue+0x9/0x45
> [ 1.562018] __ubsan_handle_load_invalid_value+0x53/0x5c
> [ 1.562023] __pagevec_release+0x24/0x47
> [ 1.562028] pagevec_release+0xe/0x11
> [ 1.562031] truncate_inode_pages_range+0x1d9/0x410
> [ 1.562036] ? __filemap_fdatawait_range+0x77/0x108
> [ 1.562041] ? __invalidate_bh_lrus+0x2b/0x2b
> [ 1.562045] ? put_bh+0x5/0x5
> [ 1.562050] truncate_inode_pages+0xd/0xf
> [ 1.562054] kill_bdev.isra.0+0x21/0x25
> [ 1.562059] blkdev_flush_mapping+0x3d/0xd3
> [ 1.562063] ? filemap_fdatawait_range+0x17/0x19
> [ 1.562067] blkdev_put_whole+0x16/0x36
> [ 1.562071] blkdev_put+0x128/0x152
> [ 1.562075] disk_scan_partitions+0x4c/0x64
> [ 1.562081] device_add_disk+0x236/0x2d5
> [ 1.562085] sd_probe+0x308/0x3c4
> [ 1.562088] really_probe+0x17f/0x3c3
> [ 1.562092] __driver_probe_device+0xcf/0x14d
> [ 1.562095] driver_probe_device+0x1e/0x8f
> [ 1.562097] __device_attach_driver+0xc7/0x104
> [ 1.562100] ? driver_allows_async_probing+0x5d/0x5d
> [ 1.562103] ? driver_allows_async_probing+0x5d/0x5d
> [ 1.562106] bus_for_each_drv+0x8c/0xb3
> [ 1.562111] __device_attach_async_helper+0x75/0xd4
> [ 1.562114] async_run_entry_fn+0x58/0xe3
> [ 1.562118] process_one_work+0x129/0x1cc
> [ 1.562121] worker_thread+0x183/0x22a
> [ 1.562124] kthread+0xe0/0xe8
> [ 1.562128] ? rescuer_thread+0x24c/0x24c
> [ 1.562130] ? kthread_complete_and_exit+0x1b/0x1b
> [ 1.562135] ret_from_fork+0x22/0x30
> [ 1.562139] </TASK>
> [ 1.562140] ================================================================================
>
>
> Full boot log and kernel config file are attached.
>
> --
> ~Randy
