Hi, I met a problem on resize2fs ext4 filesystem. # Environment OS: Redhat 7.4 64bit, Kernel: 3.10.0-693.11.6.el7.x86_64 Storage: connected 3PAR storage with multipath, create LVM on LUNs Filesystem: ext4 # Problem Description 1. create new filesystem, format ext4 2. I tried extend LVM, and resize2fs online, it worked indeed 3. I copied 27T data to the new filesystem 4. Then, I try to extend LVM and resize2fs online again, resize2fs hang at read function, the strace records are below: ----there are more lines above, do not paste here ------- lseek(3, 38465727102976, SEEK_SET) = 38465727102976 read(3, "\1\0\300/\21\0\300/!\0\300/_\177\200\0\0\0\5\0\0\0\0\0\0\0\0\0\200\0\330\326"..., 4096) = 4096 lseek(3, 38474317037568, SEEK_SET) = 38474317037568 read(3, "\1\0\340/\21\0\340/!\0\340/_\177\200\0\0\0\5\0\0\0\0\0\0\0\0\0\200\0000\214"..., 4096) = 4096 --- hang here 5. the filesystem state is clean: dumpe2fs /dev/billdb_new/billdb_new | grep state dumpe2fs 1.42.9 (28-Dec-2013) Filesystem state: clean 6. e2fsck show the filesystem is healthy. # Other Information 1. I had old filesystem with same issue, to solve this problem, I requested new LUNs from storage and create new filesystem 2. Copy data from old filesystem to new filesystem 3. The old fiesystem and new filesyste can be read/written without problem Please give me some suggestions, have googled long time.. Thanks.
