Description of problem:

'./configure --enable-valgrind-daemon' reveals the following bug
in the daemon:

enabling valgrind: valgrind --leak-check=full --error-exitcode=119 --max-stackframe=8388608 --child-silent-after-fork=yes --suppressions=/etc/guestfsd.suppressions
==154== Memcheck, a memory error detector
==154== Copyright (C) 2002-2012, and GNU GPL'd, by Julian Seward et al.
==154== Using Valgrind-3.8.1 and LibVEX; rerun with -h for copyright info
==154== Command: guestfsd
==154== 
verbose daemon enabled
linux commmand line: panic=1 guestfs_valgrind_daemon=1 console=ttyS0 udevtimeout=600 no_timer_check acpi=off printk.time=1 cgroup_disable=memory root=/dev/sdb selinux=0 guestfs_verbose=1 TERM=xterm-256color

trying to open virtio-serial channel '/dev/virtio-ports/org.libguestfs.channel.0'
udevadm settle
libguestfs: recv_from_daemon: received GUESTFS_LAUNCH_FLAG
libguestfs: [03010ms] appliance is up
libguestfs: trace: launch = 0
libguestfs: trace: list_partitions
guestfsd: main_loop: new request, len 0x28
libguestfs: trace: list_partitions = ["/dev/sda1", "/dev/sda2"]
libguestfs: trace: vfs_type "/dev/sda1"
guestfsd: main_loop: proc 8 (list_partitions) took 0.03 seconds
guestfsd: main_loop: new request, len 0x38
blkid -c /dev/null -o value -s TYPE /dev/sda1
libguestfs: trace: vfs_type = "ext2"
libguestfs: trace: vfs_type "/dev/sda2"
guestfsd: main_loop: proc 198 (vfs_type) took 0.02 seconds
guestfsd: main_loop: new request, len 0x38
blkid -c /dev/null -o value -s TYPE /dev/sda2
libguestfs: trace: vfs_type = "btrfs"
libguestfs: trace: inspect_os
libguestfs: trace: umount_all
guestfsd: main_loop: proc 198 (vfs_type) took 0.01 seconds
guestfsd: main_loop: new request, len 0x28
libguestfs: trace: umount_all = 0
libguestfs: trace: list_filesystems
libguestfs: trace: list_devices
guestfsd: main_loop: proc 47 (umount_all) took 0.01 seconds
guestfsd: main_loop: new request, len 0x28
libguestfs: trace: list_devices = ["/dev/sda"]
libguestfs: trace: list_partitions
guestfsd: main_loop: proc 7 (list_devices) took 0.00 seconds
guestfsd: main_loop: new request, len 0x28
guestfsd: main_loop: proc 8 (list_partitions) took 0.00 seconds
libguestfs: trace: list_partitions = ["/dev/sda1", "/dev/sda2"]
libguestfs: trace: list_md_devices
guestfsd: main_loop: new request, len 0x28
libguestfs: trace: list_md_devices = []
libguestfs: trace: part_to_dev "/dev/sda1"
guestfsd: main_loop: proc 300 (list_md_devices) took 0.01 seconds
guestfsd: main_loop: new request, len 0x38
libguestfs: trace: part_to_dev = "/dev/sda"
libguestfs: trace: part_to_dev "/dev/sda2"
guestfsd: main_loop: proc 272 (part_to_dev) took 0.00 seconds
guestfsd: main_loop: new request, len 0x38
guestfsd: main_loop: proc 272 (part_to_dev) took 0.00 seconds
libguestfs: trace: part_to_dev = "/dev/sda"
libguestfs: trace: part_to_partnum "/dev/sda1"
guestfsd: main_loop: new request, len 0x38
libguestfs: trace: part_to_partnum = 1
libguestfs: trace: part_to_dev "/dev/sda1"
guestfsd: main_loop: proc 293 (part_to_partnum) took 0.00 seconds
guestfsd: main_loop: new request, len 0x38
guestfsd: main_loop: proc 272 (part_to_dev) took 0.00 seconds
libguestfs: trace: part_to_dev = "/dev/sda"
libguestfs: trace: part_get_mbr_id "/dev/sda" 1
guestfsd: main_loop: new request, len 0x38
udevadm settle
sfdisk --print-id /dev/sda 1
udevadm settle
libguestfs: trace: part_get_mbr_id = 131
libguestfs: trace: vfs_type "/dev/sda1"
guestfsd: main_loop: proc 235 (part_get_mbr_id) took 0.04 seconds
guestfsd: main_loop: new request, len 0x38
blkid -c /dev/null -o value -s TYPE /dev/sda1
libguestfs: trace: vfs_type = "ext2"
libguestfs: trace: part_to_partnum "/dev/sda2"
guestfsd: main_loop: proc 198 (vfs_type) took 0.01 seconds
guestfsd: main_loop: new request, len 0x38
guestfsd: main_loop: proc 293 (part_to_partnum) took 0.00 seconds
libguestfs: trace: part_to_partnum = 2
libguestfs: trace: part_to_dev "/dev/sda2"
guestfsd: main_loop: new request, len 0x38
guestfsd: main_loop: proc 272 (part_to_dev) took 0.00 seconds
libguestfs: trace: part_to_dev = "/dev/sda"
libguestfs: trace: part_get_mbr_id "/dev/sda" 2
guestfsd: main_loop: new request, len 0x38
udevadm settle
sfdisk --print-id /dev/sda 2
udevadm settle
libguestfs: trace: part_get_mbr_id = 131
libguestfs: trace: vfs_type "/dev/sda2"
guestfsd: main_loop: proc 235 (part_get_mbr_id) took 0.03 seconds
guestfsd: main_loop: new request, len 0x38
blkid -c /dev/null -o value -s TYPE /dev/sda2
libguestfs: trace: vfs_type = "btrfs"
libguestfs: trace: btrfs_subvolume_list "/dev/sda2"
guestfsd: main_loop: proc 198 (vfs_type) took 0.01 seconds
guestfsd: main_loop: new request, len 0x38
grep ^[[:space:]]*btrfs$ /proc/filesystems
mount -o  /dev/sda2 /tmp/btrfs.UrO4L2
[    2.267233] device label ROOT devid 1 transid 11 /dev/sda2
[    2.268275] btrfs: disk space caching is enabled
btrfs subvolume list /tmp/btrfs.UrO4L2
umount /tmp/btrfs.UrO4L2
==154== Invalid read of size 2
==154==    at 0x508316F: memcpy.5 (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==154==    by 0x4092AD: do_btrfs_subvolume_list (string3.h:57)
==154==    by 0x438521: btrfs_subvolume_list_stub (stubs.c:12358)
==154==    by 0x43F084: dispatch_incoming_message (stubs.c:17082)
==154==    by 0x422B53: main_loop (proto.c:192)
==154==    by 0x4054CC: main (guestfsd.c:342)
==154==  Address 0x5c56e12 is 34 bytes inside a block of size 35 alloc'd
==154==    at 0x507F409: malloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==154==    by 0x38DC286429: strdup (in /usr/lib64/libc-2.17.so)
==154==    by 0x414EC0: add_string (guestfsd.c:529)
==154==    by 0x415D31: split_lines (guestfsd.c:1095)
==154==    by 0x409184: do_btrfs_subvolume_list (btrfs.c:388)
==154==    by 0x438521: btrfs_subvolume_list_stub (stubs.c:12358)
==154==    by 0x43F084: dispatch_incoming_message (stubs.c:17082)
==154==    by 0x422B53: main_loop (proto.c:192)
==154==    by 0x4054CC: main (guestfsd.c:342)
==154== 
==154== Invalid read of size 2
==154==    at 0x5083160: memcpy.5 (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==154==    by 0x4092AD: do_btrfs_subvolume_list (string3.h:57)
==154==    by 0x438521: btrfs_subvolume_list_stub (stubs.c:12358)
==154==    by 0x43F084: dispatch_incoming_message (stubs.c:17082)
==154==    by 0x422B53: main_loop (proto.c:192)
==154==    by 0x4054CC: main (guestfsd.c:342)
==154==  Address 0x5c56e18 is 5 bytes after a block of size 35 alloc'd
==154==    at 0x507F409: malloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==154==    by 0x38DC286429: strdup (in /usr/lib64/libc-2.17.so)
==154==    by 0x414EC0: add_string (guestfsd.c:529)
==154==    by 0x415D31: split_lines (guestfsd.c:1095)
==154==    by 0x409184: do_btrfs_subvolume_list (btrfs.c:388)
==154==    by 0x438521: btrfs_subvolume_list_stub (stubs.c:12358)
==154==    by 0x43F084: dispatch_incoming_message (stubs.c:17082)
==154==    by 0x422B53: main_loop (proto.c:192)
==154==    by 0x4054CC: main (guestfsd.c:342)
==154== 
==154== Invalid read of size 1
==154==    at 0x50832B0: memcpy.5 (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==154==    by 0x4092AD: do_btrfs_subvolume_list (string3.h:57)
==154==    by 0x438521: btrfs_subvolume_list_stub (stubs.c:12358)
==154==    by 0x43F084: dispatch_incoming_message (stubs.c:17082)
==154==    by 0x422B53: main_loop (proto.c:192)
==154==    by 0x4054CC: main (guestfsd.c:342)
==154==  Address 0x5c56e30 is not stack'd, malloc'd or (recently) free'd
==154== 
libguestfs: trace: btrfs_subvolume_list = <struct guestfs_btrfssubvolume_list *>
libguestfs: trace: feature_available "lvm2"
guestfsd: main_loop: proc 325 (btrfs_subvolume_list) took 0.34 seconds
guestfsd: main_loop: new request, len 0x34
libguestfs: trace: feature_available = 1
libguestfs: trace: lvs
guestfsd: main_loop: proc 398 (feature_available) took 0.00 seconds
guestfsd: main_loop: new request, len 0x28
lvm lvs -o vg_name,lv_name --noheadings --separator /
  WARNING: Failed to connect to lvmetad: No such file or directory. Falling back to internal scanning.
  No volume groups found
libguestfs: trace: lvs = []
libguestfs: trace: feature_available "ldm"
guestfsd: main_loop: proc 11 (lvs) took 0.01 seconds
guestfsd: main_loop: new request, len 0x34
guestfsd: main_loop: proc 398 (feature_available) took 0.00 seconds
libguestfs: trace: feature_available = 1
libguestfs: trace: list_ldm_volumes
guestfsd: main_loop: new request, len 0x28
libguestfs: trace: list_ldm_volumes = []
libguestfs: trace: list_ldm_partitions
guestfsd: main_loop: proc 380 (list_ldm_volumes) took 0.00 seconds
guestfsd: main_loop: new request, len 0x28
libguestfs: trace: list_ldm_partitions = []
libguestfs: trace: list_filesystems = ["/dev/sda1", "ext2", "btrfsvol:/dev/sda2/root", "btrfs", "btrfsvol:/dev/sda2/home", "btrfs", "/dev/sda2", "btrfs"]
libguestfs: trace: vfs_type "/dev/sda1"
guestfsd: main_loop: proc 381 (list_ldm_partitions) took 0.00 seconds
guestfsd: main_loop: new request, len 0x38
blkid -c /dev/null -o value -s TYPE /dev/sda1
libguestfs: trace: vfs_type = "ext2"
libguestfs: check_for_filesystem_on: /dev/sda1 (ext2)
libguestfs: trace: internal_parse_mountable "/dev/sda1"
guestfsd: main_loop: proc 198 (vfs_type) took 0.01 seconds
guestfsd: main_loop: new request, len 0x38
libguestfs: trace: internal_parse_mountable = <struct guestfs_internal_mountable *>
libguestfs: trace: is_whole_device "/dev/sda1"
guestfsd: main_loop: proc 396 (internal_parse_mountable) took 0.00 seconds
guestfsd: main_loop: new request, len 0x38
libguestfs: trace: is_whole_device = 0
libguestfs: trace: mount_ro "/dev/sda1" "/"
guestfsd: main_loop: proc 395 (is_whole_device) took 0.00 seconds
guestfsd: main_loop: new request, len 0x40
mount -o ro /dev/sda1 /sysroot/
[    2.672858] EXT4-fs (sda1): mounting ext2 file system using the ext4 subsystem
[    2.674254] EXT4-fs (sda1): mounted filesystem without journal. Opts: (null)
libguestfs: trace: mount_ro = 0
libguestfs: trace: part_to_partnum "/dev/sda1"
guestfsd: main_loop: proc 73 (mount_ro) took 0.02 seconds
guestfsd: main_loop: new request, len 0x38
guestfsd: main_loop: proc 293 (part_to_partnum) took 0.00 seconds
libguestfs: trace: part_to_partnum = 1
libguestfs: trace: is_dir "/etc"
guestfsd: main_loop: new request, len 0x34
libguestfs: trace: is_dir = 0
libguestfs: trace: is_dir "/bin"
guestfsd: main_loop: proc 38 (is_dir) took 0.00 seconds
guestfsd: main_loop: new request, len 0x34
guestfsd: main_loop: proc 38 (is_dir) took 0.00 seconds
libguestfs: trace: is_dir = 0
libguestfs: trace: is_dir "/share"
guestfsd: main_loop: new request, len 0x38
guestfsd: main_loop: proc 38 (is_dir) took 0.00 seconds
libguestfs: trace: is_dir = 0
libguestfs: trace: is_file "/grub/menu.lst"
guestfsd: main_loop: new request, len 0x40
libguestfs: trace: is_file = 0
libguestfs: trace: is_file "/grub/grub.conf"
guestfsd: main_loop: proc 37 (is_file) took 0.00 seconds
guestfsd: main_loop: new request, len 0x40
guestfsd: main_loop: proc 37 (is_file) took 0.00 seconds
libguestfs: trace: is_file = 1
libguestfs: trace: umount_all
guestfsd: main_loop: new request, len 0x28
umount /sysroot
libguestfs: trace: umount_all = 0
libguestfs: trace: vfs_type "btrfsvol:/dev/sda2/root"
guestfsd: main_loop: proc 47 (umount_all) took 0.01 seconds
guestfsd: main_loop: new request, len 0x44
blkid -c /dev/null -o value -s TYPE /dev/sda2
libguestfs: trace: vfs_type = "btrfs"
libguestfs: check_for_filesystem_on: btrfsvol:/dev/sda2/root (btrfs)
libguestfs: trace: internal_parse_mountable "btrfsvol:/dev/sda2/root"
guestfsd: main_loop: proc 198 (vfs_type) took 0.01 seconds
guestfsd: main_loop: new request, len 0x44
libguestfs: trace: internal_parse_mountable = <struct guestfs_internal_mountable *>
libguestfs: trace: mount_ro "btrfsvol:/dev/sda2/root" "/"
guestfsd: main_loop: proc 396 (internal_parse_mountable) took 0.00 seconds
guestfsd: main_loop: new request, len 0x4c
mount -o subvol=root,ro /dev/sda2 /sysroot/
[    2.755467] device label ROOT devid 1 transid 13 /dev/sda2
[    2.756486] btrfs: disk space caching is enabled
libguestfs: trace: mount_ro = 0
libguestfs: trace: is_dir "/etc"
guestfsd: main_loop: proc 73 (mount_ro) took 0.02 seconds
guestfsd: main_loop: new request, len 0x34
guestfsd: main_loop: proc 38 (is_dir) took 0.00 seconds
libguestfs: trace: is_dir = 1
libguestfs: trace: is_dir "/bin"
guestfsd: main_loop: new request, len 0x34
guestfsd: main_loop: proc 38 (is_dir) took 0.00 seconds
libguestfs: trace: is_dir = 1
libguestfs: trace: is_dir "/share"
guestfsd: main_loop: new request, len 0x38
guestfsd: main_loop: proc 38 (is_dir) took 0.00 seconds
libguestfs: trace: is_dir = 0
libguestfs: trace: is_file "/grub/menu.lst"
guestfsd: main_loop: new request, len 0x40
guestfsd: main_loop: proc 37 (is_file) took 0.00 seconds
libguestfs: trace: is_file = 0
libguestfs: trace: is_file "/grub/grub.conf"
guestfsd: main_loop: new request, len 0x40
guestfsd: main_loop: proc 37 (is_file) took 0.00 seconds
libguestfs: trace: is_file = 0
libguestfs: trace: is_file "/grub2/grub.cfg"
guestfsd: main_loop: new request, len 0x40
guestfsd: main_loop: proc 37 (is_file) took 0.00 seconds
libguestfs: trace: is_file = 0
libguestfs: trace: is_file "/etc/freebsd-update.conf"
guestfsd: main_loop: new request, len 0x48
guestfsd: main_loop: proc 37 (is_file) took 0.00 seconds
libguestfs: trace: is_file = 0
libguestfs: trace: is_file "/etc/fstab"
guestfsd: main_loop: new request, len 0x3c
guestfsd: main_loop: proc 37 (is_file) took 0.00 seconds
libguestfs: trace: is_file = 1
libguestfs: trace: is_file "/etc/release"
guestfsd: main_loop: new request, len 0x3c
guestfsd: main_loop: proc 37 (is_file) took 0.00 seconds
libguestfs: trace: is_file = 0
libguestfs: trace: is_file "/hurd/console"
guestfsd: main_loop: new request, len 0x40
guestfsd: main_loop: proc 37 (is_file) took 0.00 seconds
libguestfs: trace: is_file = 0
libguestfs: trace: is_file "/etc/fstab"
guestfsd: main_loop: new request, len 0x3c
guestfsd: main_loop: proc 37 (is_file) took 0.00 seconds
libguestfs: trace: is_file = 1
libguestfs: trace: is_file "/etc/lsb-release" "followsymlinks:true"
guestfsd: main_loop: new request, len 0x40
guestfsd: main_loop: proc 37 (is_file) took 0.00 seconds
libguestfs: trace: is_file = 0
libguestfs: trace: is_file "/etc/redhat-release" "followsymlinks:true"
guestfsd: main_loop: new request, len 0x44
guestfsd: main_loop: proc 37 (is_file) took 0.00 seconds
libguestfs: trace: is_file = 1
libguestfs: trace: filesize "/etc/redhat-release"
guestfsd: main_loop: new request, len 0x40
libguestfs: trace: filesize = 25
libguestfs: trace: head_n 1 "/etc/redhat-release"
guestfsd: main_loop: proc 218 (filesize) took 0.00 seconds
guestfsd: main_loop: new request, len 0x44
head -n 1
libguestfs: trace: head_n = ["Fedora release 14 (Phony)"]
libguestfs: trace: is_file "/bin/bash"
guestfsd: main_loop: proc 122 (head_n) took 0.01 seconds
guestfsd: main_loop: new request, len 0x3c
libguestfs: trace: is_file = 0
libguestfs: trace: is_file "/bin/ls"
guestfsd: main_loop: proc 37 (is_file) took 0.00 seconds
guestfsd: main_loop: new request, len 0x38
guestfsd: main_loop: proc 37 (is_file) took 0.00 seconds
libguestfs: trace: is_file = 1
libguestfs: trace: file_architecture "/bin/ls"
libguestfs: trace: file "/bin/ls"
guestfsd: main_loop: new request, len 0x34
file -zb /sysroot/bin/ls
libguestfs: trace: file = "ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.18, BuildID[sha1]=0x6e5e9bdb3a7d05e7d63d248f51de0d638df0c803, not stripped"
libguestfs: trace: file_architecture = "x86_64"
libguestfs: trace: is_file "/etc/fstab" "followsymlinks:true"
guestfsd: main_loop: proc 49 (file) took 0.01 seconds
guestfsd: main_loop: new request, len 0x3c
guestfsd: main_loop: proc 37 (is_file) took 0.00 seconds
libguestfs: trace: is_file = 1
libguestfs: trace: filesize "/etc/fstab"
guestfsd: main_loop: new request, len 0x38
guestfsd: main_loop: proc 218 (filesize) took 0.00 seconds
libguestfs: trace: filesize = 108
libguestfs: trace: is_file "/etc/mdadm.conf" "followsymlinks:true"
guestfsd: main_loop: new request, len 0x40
guestfsd: main_loop: proc 37 (is_file) took 0.00 seconds
libguestfs: trace: is_file = 0
libguestfs: trace: aug_init "/" 48
guestfsd: main_loop: new request, len 0x34
libguestfs: trace: aug_init = 0
libguestfs: augeas pathexpr = /augeas/load/*[ "/etc/fstab/" !~ regexp('^') + glob(incl) + regexp('/.*') and "/etc/mdadm.conf/" !~ regexp('^') + glob(incl) + regexp('/.*') ]
libguestfs: trace: aug_rm "/augeas/load/*[ "/etc/fstab/" !~ regexp('^') + glob(incl) + regexp('/.*') and "/etc/mdadm.conf/" !~ regexp('^') + glob(incl) + regexp('/.*') ]"
guestfsd: main_loop: proc 16 (aug_init) took 8.78 seconds
guestfsd: main_loop: new request, len 0xbc
libguestfs: trace: aug_rm = 1170
libguestfs: trace: aug_load
guestfsd: main_loop: proc 22 (aug_rm) took 0.77 seconds
guestfsd: main_loop: new request, len 0x28
libguestfs: trace: aug_load = 0
libguestfs: trace: list_md_devices
guestfsd: main_loop: proc 27 (aug_load) took 0.09 seconds
guestfsd: main_loop: new request, len 0x28
libguestfs: trace: list_md_devices = []
libguestfs: trace: aug_match "/files/etc/fstab/*[label() != '#comment']"
guestfsd: main_loop: proc 300 (list_md_devices) took 0.00 seconds
guestfsd: main_loop: new request, len 0x58
libguestfs: trace: aug_match = ["/files/etc/fstab/1", "/files/etc/fstab/2", "/files/etc/fstab/3"]
libguestfs: trace: aug_get "/files/etc/fstab/1/spec"
guestfsd: main_loop: proc 24 (aug_match) took 0.00 seconds
guestfsd: main_loop: new request, len 0x44
libguestfs: trace: aug_get = "LABEL=BOOT"
libguestfs: trace: aug_get "/files/etc/fstab/1/file"
guestfsd: main_loop: proc 19 (aug_get) took 0.00 seconds
guestfsd: main_loop: new request, len 0x44
guestfsd: main_loop: proc 19 (aug_get) took 0.00 seconds
libguestfs: trace: aug_get = "/boot"
libguestfs: trace: findfs_label "BOOT"
guestfsd: main_loop: new request, len 0x30
findfs LABEL=BOOT
libguestfs: trace: findfs_label = "/dev/sda1"
libguestfs: trace: aug_get "/files/etc/fstab/1/vfstype"
guestfsd: main_loop: proc 266 (findfs_label) took 0.02 seconds
guestfsd: main_loop: new request, len 0x48
guestfsd: main_loop: proc 19 (aulibguestfs: trace: aug_get = "ext2"
libguestfs: fstab: mountable=/dev/sda1 mountpoint=/boot
libguestfs: trace: aug_get "/files/etc/fstab/2/spec"
g_get) took 0.00 seconds
guestfsd: main_loop: new request, len 0x44
guestfsd: main_loop: proc 19 (aug_get) took 0.00 seconds
libguestfs: trace: aug_get = "LABEL=ROOT"
libguestfs: trace: aug_get "/files/etc/fstab/2/file"
guestfsd: main_loop: new request, len 0x44
guestfsd: main_loop: proc 19 (aug_get) took 0.00 seconds
libguestfs: trace: aug_get = "/"
libguestfs: trace: findfs_label "ROOT"
guestfsd: main_loop: new request, len 0x30
findfs LABEL=ROOT
libguestfs: trace: findfs_label = "/dev/sda2"
libguestfs: trace: aug_get "/files/etc/fstab/2/vfstype"
guestfsd: main_loop: proc 266 (findfs_label) took 0.01 seconds
guestfsd: main_loop: new request, len 0x48
guestfsd: main_loop: proc 19 (aug_get) took 0.00 seconds
libguestfs: trace: aug_get = "btrfs"
libguestfs: trace: aug_match "/files/etc/fstab/2/opt"
guestfsd: main_loop: new request, len 0x44
guestfsd: main_loop: proc 24 (aug_match) took 0.00 seconds
libguestfs: trace: aug_match = ["/files/etc/fstab/2/opt"]
libguestfs: trace: aug_get "/files/etc/fstab/2/opt"
guestfsd: main_loop: new request, len 0x44
guestfsd: main_loop: proc 19 (aug_get) took 0.00 secondslibguestfs: trace: aug_get = "subvol"
libguestfs: trace: aug_get "/files/etc/fstab/2/opt/value"

guestfsd: main_loop: new request, len 0x48
guestfsd: main_loop: proc 19 (aug_get) took 0.00 seconds
libguestfs: trace: aug_get = "root"
libguestfs: fstab: mountable=btrfsvol:/dev/sda2/root mountpoint=/
libguestfs: trace: aug_get "/files/etc/fstab/3/spec"
guestfsd: main_loop: new request, len 0x44
guestfsd: main_loop: proc 19 (aug_get) took 0.00 seconds
libguestfs: trace: aug_get = "LABEL=ROOT"
libguestfs: trace: aug_get "/files/etc/fstab/3/file"
guestfsd: main_loop: new request, len 0x44
guestfsd: main_loop: proc 19 (aug_get) took 0.00 seconds
libguestfs: trace: aug_get = "/home"
libguestfs: trace: findfs_label "ROOT"
guestfsd: main_loop: new request, len 0x30
findfs LABEL=ROOT
libguestfs: trace: findfs_label = "/dev/sda2"
libguestfs: trace: aug_get "/files/etc/fstab/3/vfstype"
guestfsd: main_loop: proc 266 (findfs_label) took 0.01 seconds
guestfsd: main_loop: new request, len 0x48
guestfsd: main_loop: proc 19 (aug_get) took 0.00 seconds
libguestfs: trace: aug_get = "btrfs"
libguestfs: trace: aug_match "/files/etc/fstab/3/opt"
guestfsd: main_loop: new request, len 0x44
libguestfs: trace: aug_match = ["/files/etc/fstab/3/opt"]
libguestfs: trace: aug_get "/files/etc/fstab/3/opt"
guestfsd: main_loop: proc 24 (aug_match) took 0.00 seconds
guestfsd: main_loop: new request, len 0x44
guestfsd: main_loop: proc 19 (aug_get) took 0.00 seconds
libguestfs: trace: aug_get = "subvol"
libguestfs: trace: aug_get "/files/etc/fstab/3/opt/value"
guestfsd: main_loop: new request, len 0x48
guestfsd: main_loop: proc 19 (aug_get) took 0.00 secondslibguestfs: trace: aug_get = "home"
libguestfs: fstab: mountable=btrfsvol:/dev/sda2/home mountpoint=/home
libguestfs: trace: aug_close

guestfsd: main_loop: new request, len 0x28
libguestfs: trace: aug_close = 0
libguestfs: trace: is_file "/etc/HOSTNAME"
guestfsd: main_loop: proc 26 (aug_close) took 0.64 seconds
guestfsd: main_loop: new request, len 0x40
libguestfs: trace: is_file = 0
libguestfs: trace: is_file "/etc/hostname"
guestfsd: main_loop: proc 37 (is_file) took 0.00 seconds
guestfsd: main_loop: new request, len 0x40
guestfsd: main_loop: proc 37 (is_file) took 0.00 seconds
libguestfs: trace: is_file = 0
libguestfs: trace: is_file "/etc/sysconfig/network"
guestfsd: main_loop: new request, len 0x48
guestfsd: main_loop: proc 37 (is_file) took 0.00 seconds
libguestfs: trace: is_file = 1
libguestfs: trace: is_file "/etc/sysconfig/network" "followsymlinks:true"
guestfsd: main_loop: new request, len 0x48
guestfsd: main_loop: proc 37 (is_file) took 0.00 seconds
libguestfs: trace: is_file = 1
libguestfs: trace: filesize "/etc/sysconfig/network"
guestfsd: main_loop: new request, len 0x44
guestfsd: main_loop: proc 218 (filesize) took 0.00 seconds
libguestfs: trace: filesize = 23
libguestfs: trace: aug_init "/" 48
guestfsd: main_loop: new request, len 0x34
[   18.103163] perf samples too long (2571 > 2500), lowering kernel.perf_event_max_sample_rate to 50000
libguestfs: trace: aug_init = 0
libguestfs: augeas pathexpr = /augeas/load/*[ "/etc/sysconfig/network/" !~ regexp('^') + glob(incl) + regexp('/.*') ]
libguestfs: trace: aug_rm "/augeas/load/*[ "/etc/sysconfig/network/" !~ regexp('^') + glob(incl) + regexp('/.*') ]"
guestfsd: main_loop: proc 16 (aug_init) took 8.19 seconds
guestfsd: main_loop: new request, len 0x84
libguestfs: trace: aug_rm = 1112
libguestfs: trace: aug_load
guestfsd: main_loop: proc 22 (aug_rm) took 0.35 seconds
guestfsd: main_loop: new request, len 0x28
libguestfs: trace: aug_load = 0
libguestfs: trace: aug_get "/files/etc/sysconfig/network/HOSTNAME"
guestfsd: main_loop: proc 27 (aug_load) took 0.10 seconds
guestfsd: main_loop: new request, len 0x54
libguestfs: trace: aug_get = "fedora.invalid"
libguestfs: trace: aug_close
guestfsd: main_loop: proc 19 (aug_get) took 0.00 seconds
guestfsd: main_loop: new request, len 0x28
libguestfs: trace: aug_close = 0
libguestfs: trace: umount_all
guestfsd: main_loop: proc 26 (aug_close) took 0.61 seconds
guestfsd: main_loop: new request, len 0x28
umount /sysroot
libguestfs: trace: umount_all = 0
libguestfs: trace: vfs_type "btrfsvol:/dev/sda2/home"
guestfsd: main_loop: proc 47 (umount_all) took 0.01 seconds
guestfsd: main_loop: new request, len 0x44
blkid -c /dev/null -o value -s TYPE /dev/sda2
libguestfs: trace: vfs_type = "btrfs"
libguestfs: check_for_filesystem_on: btrfsvol:/dev/sda2/home (btrfs)
libguestfs: trace: internal_parse_mountable "btrfsvol:/dev/sda2/home"
guestfsd: main_loop: proc 198 (vfs_type) took 0.01 seconds
guestfsd: main_loop: new request, len 0x44
guestfsd: main_loop: proc 396 (internal_parse_mountable) took 0.00 seconds
libguestfs: trace: internal_parse_mountable = <struct guestfs_internal_mountable *>
libguestfs: trace: mount_ro "btrfsvol:/dev/sda2/home" "/"
guestfsd: main_loop: new request, len 0x4c
mount -o subvol=home,ro /dev/sda2 /sysroot/
[   23.020401] device label ROOT devid 1 transid 13 /dev/sda2
[   23.021406] btrfs: disk space caching is enabled
libguestfs: trace: mount_ro = 0
libguestfs: trace: is_dir "/etc"
guestfsd: main_loop: proc 73 (mount_ro) took 0.02 seconds
guestfsd: main_loop: new request, len 0x34
guestfsd: main_loop: proc 38 (is_dir) took 0.00 seconds
libguestfs: trace: is_dir = 0
libguestfs: trace: is_dir "/bin"
guestfsd: main_loop: new request, len 0x34
guestfsd: main_loop: proc 38 (is_dir) took 0.00 seconds
libguestfs: trace: is_dir = 0
libguestfs: trace: is_dir "/share"
guestfsd: main_loop: new request, len 0x38
guestfsd: main_loop: proc 38 (is_dir) took 0.00 seconds
libguestfs: trace: is_dir = 0
libguestfs: trace: is_file "/grub/menu.lst"
guestfsd: main_loop: new request, len 0x40
guestfsd: main_loop: proc 37 (is_file) took 0.00 seconds
libguestfs: trace: is_file = 0
libguestfs: trace: is_file "/grub/grub.conf"
guestfsd: main_loop: new request, len 0x40
guestfsd: main_loop: proc 37 (is_file) took 0.00 seconds
libguestfs: trace: is_file = 0
libguestfs: trace: is_file "/grub2/grub.cfg"
guestfsd: main_loop: new request, len 0x40
guestfsd: main_loop: proc 37 (is_file) took 0.00 seconds
libguestfs: trace: is_file = 0
libguestfs: trace: is_file "/hurd/console"
guestfsd: main_loop: new request, len 0x40
guestfsd: main_loop: proc 37 (is_file) took 0.00 seconds
libguestfs: trace: is_file = 0
libguestfs: trace: is_dir "/log"
guestfsd: main_loop: new request, len 0x34
guestfsd: main_loop: proc 38 (is_dir) took 0.00 seconds
libguestfs: trace: is_dir = 0
libguestfs: trace: case_sensitive_path "/windows"
guestfsd: main_loop: new request, len 0x34
libguestfs: trace: case_sensitive_path = "/windows"
libguestfs: trace: case_sensitive_path "/windows/system32"
guestfsd: main_loop: proc 197 (case_sensitive_path) took 0.00 seconds
guestfsd: main_loop: new request, len 0x40
guestfsd: error: windows: no file or directory found with this name
libguestfs: trace: case_sensitive_path = NULL (error)
libguestfs: trace: case_sensitive_path "/winnt"
guestfsd: main_loop: proc 197 (case_sensitive_path) took 0.00 seconds
guestfsd: main_loop: new request, len 0x34
libguestfs: trace: case_sensitive_path = "/winnt"
libguestfs: trace: case_sensitive_path "/winnt/system32"
guestfsd: main_loop: proc 197 (case_sensitive_path) took 0.00 seconds
guestfsd: main_loop: new request, len 0x3c
guestfsd: error: winnt: no file or directory found with this name
libguestfs: trace: case_sensitive_path = NULL (error)
libguestfs: trace: case_sensitive_path "/win32"
guestfsd: main_loop: proc 197 (case_sensitive_path) took 0.00 seconds
guestfsd: main_loop: new request, len 0x34
libguestfs: trace: case_sensitive_path = "/win32"
libguestfs: trace: case_sensitive_path "/win32/system32"
guestfsd: main_loop: proc 197 (case_sensitive_path) took 0.00 seconds
guestfsd: main_loop: new request, len 0x3c
guestfsd: error: win32: no file or directory found with this name
libguestfs: trace: case_sensitive_path = NULL (error)
libguestfs: trace: case_sensitive_path "/win"
guestfsd: main_loop: proc 197 (case_sensitive_path) took 0.00 seconds
guestfsd: main_loop: new request, len 0x30
libguestfs: trace: case_sensitive_path = "/win"
libguestfs: trace: case_sensitive_path "/win/system32"
guestfsd: main_loop: proc 197 (case_sensitive_path) took 0.00 seconds
guestfsd: main_loop: new request, len 0x3c
guestfsd: error: win: no file or directory found with this name
libguestfs: trace: case_sensitive_path = NULL (error)
libguestfs: trace: case_sensitive_path "/boot.ini"
guestfsd: main_loop: proc 197 (case_sensitive_path) took 0.00 seconds
guestfsd: main_loop: new request, len 0x38
libguestfs: trace: case_sensitive_path = "/boot.ini"
libguestfs: trace: is_file "/boot.ini"
guestfsd: main_loop: proc 197 (case_sensitive_path) took 0.00 seconds
guestfsd: main_loop: new request, len 0x3c
guestfsd: main_loop: proc 37 (is_file) took 0.00 seconds
libguestfs: trace: is_file = 0
libguestfs: trace: case_sensitive_path "/System Volume Information"
guestfsd: main_loop: new request, len 0x48
libguestfs: trace: case_sensitive_path = "/System Volume Information"
libguestfs: trace: is_dir "/System Volume Information"
guestfsd: main_loop: proc 197 (case_sensitive_path) took 0.00 seconds
guestfsd: main_loop: new request, len 0x4c
guestfsd: main_loop: proc 38 (is_dir) took 0.00 seconds
libguestfs: trace: is_dir = 0
libguestfs: trace: case_sensitive_path "/System Volume Information"
guestfsd: main_loop: new request, len 0x48
libguestfs: trace: case_sensitive_path = "/System Volume Information"
libguestfs: trace: is_dir "/System Volume Information"
guestfsd: main_loop: proc 197 (case_sensitive_path) took 0.00 seconds
guestfsd: main_loop: new request, len 0x4c
guestfsd: main_loop: proc 38 (is_dir) took 0.00 seconds
libguestfs: trace: is_dir = 0
libguestfs: trace: case_sensitive_path "/FDOS"
guestfsd: main_loop: new request, len 0x34
libguestfs: trace: case_sensitive_path = "/FDOS"
libguestfs: trace: is_dir "/FDOS"
guestfsd: main_loop: proc 197 (case_sensitive_path) took 0.00 seconds
guestfsd: main_loop: new request, len 0x38
guestfsd: main_loop: proc 38 (is_dir) took 0.00 seconds
libguestfs: trace: is_dir = 0
libguestfs: trace: umount_all
guestfsd: main_loop: new request, len 0x28
umount /sysroot
libguestfs: trace: umount_all = 0
libguestfs: trace: vfs_type "/dev/sda2"
guestfsd: main_loop: proc 47 (umount_all) took 0.01 seconds
guestfsd: main_loop: new request, len 0x38
blkid -c /dev/null -o value -s TYPE /dev/sda2
libguestfs: trace: vfs_type = "btrfs"
libguestfs: check_for_filesystem_on: /dev/sda2 (btrfs)
libguestfs: trace: internal_parse_mountable "/dev/sda2"
guestfsd: main_loop: proc 198 (vfs_type) took 0.01 seconds
guestfsd: main_loop: new request, len 0x38
guestfsd: main_loop: proc 396 (internal_parse_mountable) took 0.00 seconds
libguestfs: trace: internal_parse_mountable = <struct guestfs_internal_mountable *>
libguestfs: trace: is_whole_device "/dev/sda2"
guestfsd: main_loop: new request, len 0x38
guestfsd: main_loop: proc 395 (is_whole_device) took 0.00 seconds
libguestfs: trace: is_whole_device = 0
libguestfs: trace: mount_ro "/dev/sda2" "/"
guestfsd: main_loop: new request, len 0x40
mount -o ro /dev/sda2 /sysroot/
[   23.154795] device label ROOT devid 1 transid 13 /dev/sda2
[   23.155910] btrfs: disk space caching is enabled
libguestfs: trace: mount_ro = 0
libguestfs: trace: part_to_partnum "/dev/sda2"
guestfsd: main_loop: proc 73 (mount_ro) took 0.02 seconds
guestfsd: main_loop: new request, len 0x38
guestfsd: main_loop: proc 293 (part_to_partnum) took 0.00 seconds
libguestfs: trace: part_to_partnum = 2
libguestfs: trace: is_dir "/etc"
guestfsd: main_loop: new request, len 0x34
guestfsd: main_loop: proc 38 (is_dir) took 0.00 seconds
libguestfs: trace: is_dir = 0
libguestfs: trace: is_dir "/bin"
guestfsd: main_loop: new request, len 0x34
guestfsd: main_loop: proc 38 (is_dir) took 0.00 seconds
libguestfs: trace: is_dir = 0
libguestfs: trace: is_dir "/share"
guestfsd: main_loop: new request, len 0x38
guestfsd: main_loop: proc 38 (is_dir) took 0.00 seconds
libguestfs: trace: is_dir = 0
libguestfs: trace: is_file "/grub/menu.lst"
guestfsd: main_loop: new request, len 0x40
guestfsd: main_loop: proc 37 (is_file) took 0.00 seconds
libguestfs: trace: is_file = 0
libguestfs: trace: is_file "/grub/grub.conf"
guestfsd: main_loop: new request, len 0x40
guestfsd: main_loop: proc 37 (is_file) took 0.00 seconds
libguestfs: trace: is_file = 0
libguestfs: trace: is_file "/grub2/grub.cfg"
guestfsd: main_loop: new request, len 0x40
guestfsd: main_loop: proc 37 (is_file) took 0.00 seconds
libguestfs: trace: is_file = 0
libguestfs: trace: is_file "/hurd/console"
guestfsd: main_loop: new request, len 0x40
guestfsd: main_loop: proc 37 (is_file) took 0.00 seconds
libguestfs: trace: is_file = 0
libguestfs: trace: is_dir "/log"
guestfsd: main_loop: new request, len 0x34
guestfsd: main_loop: proc 38 (is_dir) took 0.00 seconds
libguestfs: trace: is_dir = 0
libguestfs: trace: case_sensitive_path "/windows"
guestfsd: main_loop: new request, len 0x34
libguestfs: trace: case_sensitive_path = "/windows"
libguestfs: trace: case_sensitive_path "/windows/system32"
guestfsd: main_loop: proc 197 (case_sensitive_path) took 0.00 seconds
guestfsd: main_loop: new request, len 0x40
guestfsd: error: windows: no file or directory found with this name
guestfsd: main_loop: proc 197 (case_sensitive_path) took 0.00 seconds
libguestfs: trace: case_sensitive_path = NULL (error)
libguestfs: trace: case_sensitive_path "/winnt"
guestfsd: main_loop: new request, len 0x34
libguestfs: trace: case_sensitive_path = "/winnt"
libguestfs: trace: case_sensitive_path "/winnt/system32"
guestfsd: main_loop: proc 197 (case_sensitive_path) took 0.00 seconds
guestfsd: main_loop: new request, len 0x3c
guestfsd: error: winnt: no file or directory found with this name
guestfsd: main_loop: proc 197 (case_sensitive_path) took 0.00 seconds
libguestfs: trace: case_sensitive_path = NULL (error)
libguestfs: trace: case_sensitive_path "/win32"
guestfsd: main_loop: new request, len 0x34
libguestfs: trace: case_sensitive_path = "/win32"
libguestfs: trace: case_sensitive_path "/win32/system32"
guestfsd: main_loop: proc 197 (case_sensitive_path) took 0.00 seconds
guestfsd: main_loop: new request, len 0x3c
guestfsd: error: win32: no file or directory found with this name
guestfsd: main_loop: proc 197 (case_sensitive_path) took 0.00 seconds
libguestfs: trace: case_sensitive_path = NULL (error)
libguestfs: trace: case_sensitive_path "/win"
guestfsd: main_loop: new request, len 0x30
libguestfs: trace: case_sensitive_path = "/win"
libguestfs: trace: case_sensitive_path "/win/system32"
guestfsd: main_loop: proc 197 (case_sensitive_path) took 0.00 seconds
guestfsd: main_loop: new request, len 0x3c
guestfsd: error: win: no file or directory found with this name
libguestfs: trace: case_sensitive_path = NULL (error)
libguestfs: trace: case_sensitive_path "/boot.ini"
guestfsd: main_loop: proc 197 (case_sensitive_path) took 0.00 seconds
guestfsd: main_loop: new request, len 0x38
libguestfs: trace: case_sensitive_path = "/boot.ini"
libguestfs: trace: is_file "/boot.ini"
guestfsd: main_loop: proc 197 (case_sensitive_path) took 0.00 seconds
guestfsd: main_loop: new request, len 0x3c
guestfsd: main_loop: proc 37 (is_file) took 0.00 seconds
libguestfs: trace: is_file = 0
libguestfs: trace: case_sensitive_path "/System Volume Information"
guestfsd: main_loop: new request, len 0x48
libguestfs: trace: case_sensitive_path = "/System Volume Information"
libguestfs: trace: is_dir "/System Volume Information"
guestfsd: main_loop: proc 197 (case_sensitive_path) took 0.00 seconds
guestfsd: main_loop: new request, len 0x4c
guestfsd: main_loop: proc 38 (is_dir) took 0.00 seconds
libguestfs: trace: is_dir = 0
libguestfs: trace: case_sensitive_path "/System Volume Information"
guestfsd: main_loop: new request, len 0x48
guestfsd: main_loop: proc 197 (case_sensitive_path) took 0.00 selibguestfs: trace: case_sensitive_path = "/System Volume Information"
libguestfs: trace: is_dir "/System Volume Information"
conds
guestfsd: main_loop: new request, len 0x4c
guestfsd: main_loop: proc 38 (is_dir) took 0.00 seconds
libguestfs: trace: is_dir = 0
libguestfs: trace: case_sensitive_path "/FDOS"
guestfsd: main_loop: new request, len 0x34
guestfsd: main_loop: proc 197 (case_sensitive_path) took 0.00 seconds
libguestfs: trace: case_sensitive_path = "/FDOS"
libguestfs: trace: is_dir "/FDOS"
guestfsd: main_loop: new request, len 0x38
guestfsd: main_loop: proc 38 (is_dir) took 0.00 seconds
libguestfs: trace: is_dir = 0
libguestfs: trace: umount_all
guestfsd: main_loop: new request, len 0x28
umount /sysroot
libguestfs: trace: umount_all = 0
libguestfs: trace: inspect_get_roots
libguestfs: trace: inspect_get_roots = ["btrfsvol:/dev/sda2/root"]
libguestfs: trace: inspect_os = ["btrfsvol:/dev/sda2/root"]
libguestfs: trace: inspect_get_mountpoints "btrfsvol:/dev/sda2/root"
libguestfs: trace: inspect_get_mountpoints = ["/boot", "/dev/sda1", "/", "btrfsvol:/dev/sda2/root", "/home", "btrfsvol:/dev/sda2/home"]
libguestfs: trace: mount "btrfsvol:/dev/sda2/root" "/"
guestfsd: main_loop: proc 47 (umount_all) took 0.01 seconds
guestfsd: main_loop: new request, len 0x4c
mount -o subvol=root /dev/sda2 /sysroot/
[   23.262380] device label ROOT devid 1 transid 13 /dev/sda2
[   23.263405] btrfs: disk space caching is enabled
libguestfs: trace: mount = 0
libguestfs: trace: mount "/dev/sda1" "/boot"
guestfsd: main_loop: proc 1 (mount) took 0.02 seconds
guestfsd: main_loop: new request, len 0x44
mount -o  /dev/sda1 /sysroot/boot
[   23.287065] EXT4-fs (sda1): mounting ext2 file system using the ext4 subsystem
[   23.288678] EXT4-fs (sda1): mounted filesystem without journal. Opts: (null)
libguestfs: trace: mount = 0
libguestfs: trace: mount "btrfsvol:/dev/sda2/home" "/home"
guestfsd: main_loop: proc 1 (mount) took 0.02 seconds
guestfsd: main_loop: new request, len 0x50
guestfsd: error: mount: /home: No such file or directory
guestfsd: main_loop: proc 1 (mount) took 0.00 seconds
libguestfs: trace: mount = -1 (error)
libguestfs: error: mount: mount: /home: No such file or directory
lt-guestfish: some filesystems could not be mounted (ignored)
libguestfs: trace: inspect_get_roots
libguestfs: trace: inspect_get_roots = ["btrfsvol:/dev/sda2/root"]
libguestfs: trace: inspect_get_mountpoints "btrfsvol:/dev/sda2/root"
libguestfs: trace: inspect_get_mountpoints = ["/boot", "/dev/sda1", "/", "btrfsvol:/dev/sda2/root", "/home", "btrfsvol:/dev/sda2/home"]
libguestfs: trace: shutdown
libguestfs: trace: internal_autosync
guestfsd: main_loop: new request, len 0x28
umount /sysroot/boot
umount /sysroot
fsync /dev/sda
libguestfs: trace: internal_autosync = 0
libguestfs: trace: internal_exit
guestfsd: main_loop: proc 282 (internal_autosync) took 0.14 seconds
guestfsd: main_loop: new request, len 0x28
libguestfs: trace: internal_exit = 0
==154== 
==154== HEAP SUMMARY:
==154==     in use at exit: 40 bytes in 1 blocks
==154==   total heap usage: 3,828,298 allocs, 3,828,297 frees, 325,947,807 bytes allocated
==154== 
==154== LEAK SUMMARY:
==154==    definitely lost: 0 bytes in 0 blocks
==154==    indirectly lost: 0 bytes in 0 blocks
==154==      possibly lost: 0 bytes in 0 blocks
==154==    still reachable: 40 bytes in 1 blocks
==154==         suppressed: 0 bytes in 0 blocks
==154== Reachable blocks (those to which a pointer was found) are not shown.
==154== To see them, rerun with: --leak-check=full --show-reachable=yes
==154== 
==154== For counts of detected and suppressed errors, rerun with: -v
==154== ERROR SUMMARY: 32 errors from 3 contexts (suppressed: 0 from 0)
DAEMON VALGRIND FAILED
Detected valgrind failure in the daemon!  Exiting with exit code 119.
See log messages printed above.
Note: This happens because libguestfs was configured with
'--enable-valgrind-daemon' which should not be used in production builds.
libguestfs: trace: close
libguestfs: closing guestfs handle 0x1fe9de0 (state 2)
libguestfs: trace: internal_autosync
Rebooting.

Version-Release number of selected component (if applicable):

libguestfs 1.23.29 (from git)

How reproducible:

100%

Steps to Reproduce:
1. ./configure --enable-valgrind-daemon
2. make
3. make check LIBGUESTFS_TRACE=1 LIBGUESTFS_DEBUG=1