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Fri, 09 Feb 2024 21:30:24 -0800 (PST) Date: Fri, 09 Feb 2024 21:30:24 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000006e468c06110057ab@google.com> Subject: [syzbot] [kernel?] linux-next boot error: kernel panic: VFS: Unable to mount root fs on unknown-block(NUM,NUM) (2) From: syzbot To: linux-kernel@vger.kernel.org, linux-next@vger.kernel.org, sfr@canb.auug.org.au, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: ac139fc7db67 Add linux-next specific files for 20240206 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=12acdbffe80000 kernel config: https://syzkaller.appspot.com/x/.config?x=2b5fe6166ab1fa63 dashboard link: https://syzkaller.appspot.com/bug?extid=fbd73dc34f8681ecb8c0 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/7944e61925e3/disk-ac139fc7.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/e5fcc1af6c7d/vmlinux-ac139fc7.xz kernel image: https://storage.googleapis.com/syzbot-assets/be76eb66afdf/bzImage-ac139fc7.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+fbd73dc34f8681ecb8c0@syzkaller.appspotmail.com (driver?) 1f00 128 mtdblock0 (driver?) 0800 2097152 sda driver: sd 0801 1048576 sda1 00000000-01 List of all bdev filesystems: reiserfs ext3 ext2 ext4 cramfs squashfs minix vfat msdos exfat bfs iso9660 hfsplus hfs vxfs sysv v7 hpfs ntfs3 ufs efs affs romfs qnx4 qnx6 adfs fuseblk udf omfs jfs xfs nilfs2 befs ocfs2 gfs2 gfs2meta f2fs bcachefs erofs zonefs btrfs Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(8,1) CPU: 1 PID: 1 Comm: swapper/0 Not tainted 6.8.0-rc3-next-20240206-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e7/0x2e0 lib/dump_stack.c:106 panic+0x349/0x860 kernel/panic.c:348 mount_root_generic+0x3b5/0x3e0 init/do_mounts.c:234 prepare_namespace+0xc2/0x100 init/do_mounts.c:489 kernel_init_freeable+0x471/0x5d0 init/main.c:1555 kernel_init+0x1d/0x2b0 init/main.c:1432 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:242 Kernel Offset: disabled Rebooting in 86400 seconds.. --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup