Comment # 12 on bug 1208822 from WEI GAO

(In reply to Petr Vorel from comment #11)
> (In reply to WEI GAO from comment #10) 
> > In my local env, the case will pass with mkfs.exfat installed, BUT in jeos
> > env mkfs.exfat can not be installed(caused by can not install exfatprogs).
> 
> I'm sorry, it must be something else. The original report shows mkfs.exfat
> installed via exfat-utils:
> 
> The following package is recommended, but will not be installed due to
> conflicts or dependency issues:
>   exfatprogs
> 
> The following 167 NEW packages are going to be installed:
>   NetworkManager-dns-bind NetworkManager-dns-dnsmasq apparmor-utils attr
> babeltrace bc bind bind-utils binutils cpp cpp12 ctags cyrus-sasl
> cyrus-sasl-gssapi debuginfod-profile device-mapper dhcp dhcp-client
> dhcp-server dnsmasq e2fsprogs ethtool evmctl exfat-utils
> (note exfat-utils)
> ...
> 
> # fsconfig03; echo "### TEST cve-2022-0185 COMPLETE >>> $?."
> ...
> tst_supported_fs_types.c:120: TINFO: FUSE does support exfat
> tst_supported_fs_types.c:55: TINFO: mkfs.exfat does exist
> ...
> tst_test.c:1634: TINFO: === Testing on btrfs ===
> tst_test.c:1093: TINFO: Formatting /dev/loop0 with btrfs opts='' extra
> opts=''
> fsconfig03.c:72: TPASS: kernel seems to be fine on btrfs
> tst_test.c:1634: TINFO: === Testing on exfat ===
> tst_test.c:1093: TINFO: Formatting /dev/loop0 with exfat opts='' extra
> opts=''
> fsconfig03.c:38: TBROK: fsopen() failed: ENODEV (19)
> 
> I also verified exfat-utils package locally:
> rpm -qlp exfat-utils-1.4.0-1.2.x86_64.rpm
> ...
> /usr/sbin/mkfs.exfat
> ...
> => it's not a problem of mkfs.exfat dependency.
> 
> Sometimes some kernel modules are missing, because we test with only
> kernel-default-base package. But 1) we run with fuse 2) although exfat is
> module (CONFIG_EXFAT_FS=m see
> https://openqa.opensuse.org/tests/3172507#step/install_ltp/75), LTP
> confirmed the support (thus module was loaded).
> 
> I searched in dmesg. The usual dmesg file in openQA don't contain dmesg
> output:
> https://openqa.opensuse.org/tests/3172507/file/serial0.txt
> 
> Looking into another file, which contains dmesg
> https://openqa.opensuse.org/tests/3172507/file/shutdown_ltp-dmesg.txt
> is without "OpenQA::run_ltp.pm: Starting ..." mark in dmesg 
> https://github.com/os-autoinst/os-autoinst-distri-opensuse/blob/
> 63a66f99ef7b274c94ac546d3807c89e5a9a0a9c/tests/kernel/run_ltp.pm#L306-L318
> which helps finding which dmesg part was caused by particular test (but test
> is using virtio console).
> 
> There are errors in the end, but because the latest message is btrfs, it 
> [ 1517.688092] operation not supported error, dev loop0, sector 98310 op
> 0x9:(WRITE_ZEROES) flags 0x8000800 phys_seg 0 prio class 2
> [ 1517.688196] operation not supported error, dev loop0, sector 115212 op
> 0x9:(WRITE_ZEROES) flags 0x8000800 phys_seg 0 prio class 2
> [ 1517.688300] operation not supported error, dev loop0, sector 131078 op
> 0x9:(WRITE_ZEROES) flags 0x8000800 phys_seg 0 prio class 2
> [ 1517.809762] BTRFS: device fsid ea5c84b6-3547-494d-a4b5-599c5c2e7ec3 devid
> 1 transid 6 /dev/loop0 scanned by mkfs.btrfs (13689)
> 
> => It would help if you download JeOS image, start it locally with
> virt-manager and watch dmesg. Or even start it with strace to see more.


Download
openSUSE-Tumbleweed-Minimal-VM.x86_64-1.0.0-kvm-and-xen-Snapshot20230326.qcow2
and do some check:
kernel config has CONFIG_EXFAT_FS=m but you can not find exfat related modules
installed so running system actually not support exfat, that's why LTP case
failed on fsopen(exfat)

For LTP side, should we also need some fix? Since current LTP case still think
exfat is support on system but actually not.

===output from
openSUSE-Tumbleweed-Minimal-VM.x86_64-1.0.0-kvm-and-xen-Snapshot20230326.qcow2===

uefi-http-vm:~ # cat /boot/config-6.2.8-1-default | grep FAT
# DOS/FAT/EXFAT/NT Filesystems
CONFIG_FAT_FS=m
CONFIG_VFAT_FS=m
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
# CONFIG_FAT_DEFAULT_UTF8 is not set
CONFIG_EXFAT_FS=m
CONFIG_EXFAT_DEFAULT_IOCHARSET="utf8"
# end of DOS/FAT/EXFAT/NT Filesystems
uefi-http-vm:~ #

uefi-http-vm:~ # uname -r
6.2.8-1-default
uefi-http-vm:~ # cat /lib/modules/6.2.8-1-default/modules.builtin | grep fat
uefi-http-vm:~ # modprobe exfat
modprobe: FATAL: Module exfat not found in directory
/lib/modules/6.2.8-1-default
uefi-http-vm:~ # cat /proc/filesystems | grep fat
        vfat
uefi-http-vm:~ # cat /proc/filesystems
nodev   sysfs
nodev   tmpfs
nodev   bdev
nodev   proc
nodev   cgroup
nodev   cgroup2
nodev   cpuset
nodev   devtmpfs
nodev   debugfs
nodev   tracefs
nodev   securityfs
nodev   sockfs
nodev   bpf
nodev   pipefs
nodev   ramfs
nodev   hugetlbfs
nodev   devpts
nodev   autofs
nodev   mqueue
nodev   pstore
nodev   efivarfs
        btrfs
nodev   configfs
        fuseblk
nodev   fuse
nodev   fusectl
        vfat