https://bugzilla.kernel.org/show_bug.cgi?id=193431 Bug ID: 193431 Summary: 512 byte inodes + inline_data + journal_data == segfaults/buserrors in userspace mmap Product: File System Version: 2.5 Kernel Version: Multiple ( tested on 3.16, 4.1 and 4.9 ) Hardware: All OS: Linux Tree: Mainline Status: NEW Severity: high Priority: P1 Component: ext4 Assignee: fs_ext4@xxxxxxxxxxxxxxxxxxxx Reporter: rabbit@xxxxxxxxx Regression: No Created attachment 253361 --> https://bugzilla.kernel.org/attachment.cgi?id=253361&action=edit Backtrace attempt Steps to reproduce: root@Ahasver:~# dd if=/dev/zero of=zeros.img bs=128M count=1 1+0 records in 1+0 records out 134217728 bytes (134 MB) copied, 1.61473 s, 83.1 MB/s root@Ahasver:~# losetup -f zeros.img root@Ahasver:~# mke2fs -t ext4 -I 512 -j -O inline_data /dev/loop0 mke2fs 1.43.3 (04-Sep-2016) journal checksum features. Discarding device blocks: done Creating filesystem with 131072 1k blocks and 32768 inodes Filesystem UUID: 675cf4a8-fb74-4a4a-9f28-f01b462b1933 Superblock backups stored on blocks: 8193, 24577, 40961, 57345, 73729 Allocating group tables: done Writing inode tables: done Creating journal (4096 blocks): done Writing superblocks and filesystem accounting information: done root@Ahasver:~# mount -o data=journal /dev/loop0 /mnt root@Ahasver:~# rm -f /usr/lib/locale/locale-archive root@Ahasver:~# ln -s /mnt/locale-archive /usr/lib/locale/locale-archive root@Ahasver:~# localedef -i en_US -c -f ISO-8859-1 en_US Segmentation fault I am also attaching a gdb backtrace of the error as seen using the Debian Stretch Installer RC1. The backtraced line 773 seems to be this one: https://sources.debian.net/src/glibc/2.24-9/locale/programs/locarchive.c/#L773 -- You are receiving this mail because: You are watching the assignee of the bug.
