From: Tetsuo Handa <penguin-ker...@i-love.sakura.ne.jp> [ Upstream commit f4ac712e4fe009635344b9af5d890fe25fcc8c0d ]
syzbot is reporting unkillable task [1], for the caller is failing to handle a corrupted filesystem image which attempts to access beyond the end of the device. While we need to fix the caller, flooding the console with handle_bad_sector() message is unlikely useful. [1] https://syzkaller.appspot.com/bug?id=f1f49fb971d7a3e01bd8ab8cff2ff4572ccf3092 Signed-off-by: Tetsuo Handa <penguin-ker...@i-love.sakura.ne.jp> Reviewed-by: Christoph Hellwig <h...@lst.de> Signed-off-by: Jens Axboe <ax...@kernel.dk> Signed-off-by: Sasha Levin <sas...@kernel.org> --- block/blk-core.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/block/blk-core.c b/block/blk-core.c index 619a3dcd3f5e7..8d6435b731186 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -798,11 +798,10 @@ static void handle_bad_sector(struct bio *bio, sector_t maxsector) { char b[BDEVNAME_SIZE]; - printk(KERN_INFO "attempt to access beyond end of device\n"); - printk(KERN_INFO "%s: rw=%d, want=%Lu, limit=%Lu\n", - bio_devname(bio, b), bio->bi_opf, - (unsigned long long)bio_end_sector(bio), - (long long)maxsector); + pr_info_ratelimited("attempt to access beyond end of device\n" + "%s: rw=%d, want=%llu, limit=%llu\n", + bio_devname(bio, b), bio->bi_opf, + bio_end_sector(bio), maxsector); } #ifdef CONFIG_FAIL_MAKE_REQUEST -- 2.25.1
