bug#33106: "make check-system TESTS=basic" fails on master

[Chris Marusich]

Hi Guix,

The system test "basic" fails on commit
7d1f21c69aa89e4c7c57ace26af80d168157b243 (master).  To reproduce, check
out that commit and run:

    make check-system TESTS="basic"

For the record, this is on an x86_64-linux GuixSD system using an ext4
root file system.  Here's the error (I've sanitized the output, which
apparently contained some unprintable characters, and removed some lines
for brevity):

--8<---------------cut here---------------start------------->8---
qemu-system-x86_64: warning: hub 0 is not connected to host network
[?7l
[0mSeaBIOS (version rel-1.11.2-0-gf9626ccb91-prebuilt.qemu-project.org)
iPXE (http://ipxe.org) 00:03.0 C980 PCI2.10 PnP PMM+0FF91280+0FEF1280 C980
Press Ctrl-B to configure iPXE (PCI 00:03.0)...
                                                                               
Booting from ROM...
[?7l
[2J[    0.000000] Linux version 4.18.15-gnu (nixbld@) (gcc version 7.3.0 (GCC)) 
#1 SMP 1
[    0.000000] Command line: console=ttyS0 --root=/dev/vda1 
--system=/gnu/store/pcjn1bvz1khr8k04qablc62rzwgfbh2b-system 
--load=/gnu/store/pcjn1bvz1khr8k04qablc62rzwgfbh2b-system/boot panic=1
[... Lines omitted for brevity ...]
[    0.000000] Kernel command line: console=ttyS0 --root=/dev/vda1 
--system=/gnu/store/pcjn1bvz1khr8k04qablc62rzwgfbh2b-system 
--load=/gnu/store/pcjn1bvz1khr8k04qablc62rzwgfbh2b-system/boot panic=1
[... Lines omitted for brevity ...]
GC Warning: pthread_getattr_np or pthread_attr_getstack failed for main thread
GC Warning: Couldn't read /proc/stat
Welcome, this is GNU's early boot Guile.
Use '--repl' for an initrd REPL.
loading kernel modules...
[    1.425572] usbcore: registered new interface driver usb-storage
[    1.442635] usbcore: registered new interface driver uas
[    1.464201] hidraw: raw HID events driver (C) Jiri Kosina
[    1.469015] usbcore: registered new interface driver usbhid
[    1.470604] usbhid: USB HID core driver
[    1.526453] isci: Intel(R) C600 SAS Controller Driver - version 1.2.0
[    1.564134] PCI Interrupt Link [LNKC] enabled at IRQ 11
[    1.594052] PCI Interrupt Link [LNKD] enabled at IRQ 10
[    1.623716] PCI Interrupt Link [LNKA] enabled at IRQ 10
[    1.653420] PCI Interrupt Link [LNKB] enabled at IRQ 11
[    1.701890] virtio_blk: probe of virtio4 failed with error -2
[    1.718210] virtio_net: probe of virtio0 failed with error -2
[    1.724827] virtio_console virtio3: Error -2 initializing vqs
[    1.726493] virtio_console: probe of virtio3 failed with error -2
[    1.732626] virtio_rng: probe of virtio1 failed with error -2
[    1.747209] FS-Cache: Loaded
[    1.753755] 9pnet: Installing 9P2000 support
[    1.756817] 9p: Installing v9fs 9p2000 file system support
[    1.758476] FS-Cache: Netfs '9p' registered for caching
[    1.767544] 9pnet_virtio: probe of virtio2 failed with error -2
In gnu/build/linux-boot.scm:
   516:13  2 (_)
    367:8  1 (mount-root-file-system "/dev/vda1" "ext4" # _)
In unknown file:
          [    1.798957] random: fast init done
 0 (mount "/dev/vda1" "/real-root" "ext4" 1 #<undefined>)
In procedure mount: No such file or directory
[    1.808236] Kernel panic - not syncing: Attempted to kill init! 
exitcode=0x00000000
[    1.808236] 
[    1.810919] CPU: 0 PID: 1 Comm: init Not tainted 4.18.15-gnu #1
[    1.812019] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
rel-1.11.2-0-gf9626ccb91-prebuilt.qemu-project.org 04/01/2014
[    1.812019] Call Trace:
[    1.812019]  dump_stack+0x63/0x85
[    1.812019]  panic+0xe4/0x244
[    1.812019]  do_exit+0xb1a/0xb20
[    1.812019]  ? wake_up_state+0x10/0x20
[    1.812019]  do_group_exit+0x43/0xb0
[    1.812019]  __x64_sys_exit_group+0x18/0x20
[    1.812019]  do_syscall_64+0x5a/0x120
[    1.812019]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[    1.812019] RIP: 0033:0x5ecce6
[    1.812019] Code: Bad RIP value.
[    1.812019] RSP: 002b:00007ffdddceb3e8 EFLAGS: 00000246 ORIG_RAX: 
00000000000000e7
[    1.812019] RAX: ffffffffffffffda RBX: 0000000000812ff0 RCX: 00000000005ecce6
[    1.812019] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000
[    1.812019] RBP: 0000000000000000 R08: 00000000000000e7 R09: ffffffffffffffb0
[    1.812019] R10: 00007f85d01aef88 R11: 0000000000000246 R12: 0000000000a63818
[    1.812019] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000003
[    1.812019] Kernel Offset: 0x2a000000 from 0xffffffff81000000 (relocation 
range: 0xffffffff80000000-0xffffffffbfffffff)
[    1.812019] Rebooting in 1 seconds..
QEMU runs as PID 4
connected to QEMU's monitor
read QEMU monitor prompt
connected to guest REPL
%%%% Starting test basic  (Writing full log to "basic.log")
/gnu/store/b1f0pn2zp33b0q06cp39yk9p1qasxzqi-basic-builder:1: FAIL uname
/gnu/store/b1f0pn2zp33b0q06cp39yk9p1qasxzqi-basic-builder:1: FAIL shepherd 
socket ready
/gnu/store/b1f0pn2zp33b0q06cp39yk9p1qasxzqi-basic-builder:1: FAIL shell and 
user commands
/gnu/store/b1f0pn2zp33b0q06cp39yk9p1qasxzqi-basic-builder:1: FAIL special files
/gnu/store/b1f0pn2zp33b0q06cp39yk9p1qasxzqi-basic-builder:1: FAIL accounts
/gnu/store/b1f0pn2zp33b0q06cp39yk9p1qasxzqi-basic-builder:1: FAIL shepherd 
services
/gnu/store/b1f0pn2zp33b0q06cp39yk9p1qasxzqi-basic-builder:1: FAIL homes
/gnu/store/b1f0pn2zp33b0q06cp39yk9p1qasxzqi-basic-builder:1: FAIL skeletons in 
home directories
/gnu/store/b1f0pn2zp33b0q06cp39yk9p1qasxzqi-basic-builder:1: FAIL permissions 
on /root
/gnu/store/b1f0pn2zp33b0q06cp39yk9p1qasxzqi-basic-builder:1: FAIL no extra home 
directories
/gnu/store/b1f0pn2zp33b0q06cp39yk9p1qasxzqi-basic-builder:1: FAIL login on tty1
/gnu/store/b1f0pn2zp33b0q06cp39yk9p1qasxzqi-basic-builder:2: FAIL utmpx entry
/gnu/store/b1f0pn2zp33b0q06cp39yk9p1qasxzqi-basic-builder:2: FAIL wtmp entry
/gnu/store/b1f0pn2zp33b0q06cp39yk9p1qasxzqi-basic-builder:2: FAIL host name 
resolution
/gnu/store/b1f0pn2zp33b0q06cp39yk9p1qasxzqi-basic-builder:2: FAIL locale
/gnu/store/b1f0pn2zp33b0q06cp39yk9p1qasxzqi-basic-builder:2: FAIL 
/run/current-system is a GC root
/gnu/store/b1f0pn2zp33b0q06cp39yk9p1qasxzqi-basic-builder:2: FAIL 
/var/guix/gcroots/profiles is a valid symlink
/gnu/store/b1f0pn2zp33b0q06cp39yk9p1qasxzqi-basic-builder:2: FAIL screendump
/gnu/store/b1f0pn2zp33b0q06cp39yk9p1qasxzqi-basic-builder:2: FAIL screen text
# of expected passes      1
# of unexpected failures  19
--8<---------------cut here---------------end--------------->8---

Some questions/observations:

1) Where is the "basic.log" file?  I checked the Guix checkout and the
retained directory of the failed derivation (i.e., the directory
produced by guix build --keep-failed /gnu/store/...gjmid5-basic.drv),
but I don't see it anywhere.

2) The test seems to have failed becuase of the following issue, which
is mentioned in the output above:

--8<---------------cut here---------------start------------->8---
0 (mount "/dev/vda1" "/real-root" "ext4" 1 #<undefined>)
In procedure mount: No such file or directory
--8<---------------cut here---------------end--------------->8---

The next steps are probably to look into whether /dev/vda1 or /real-root
exist when that call is made, and if one of them is missing, investigate
why it doesn't exist.

-- 
Chris

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