In my first attempt I didn't use --devmode.
However, I can't seem to make the snap work in a xenial amd64 VM.
I tried the original snap with:
$ sudo snap install --devmode ./snappy-tests_0.1_amd64.snap
$ snappy-tests -check.f homeInterfaceSuite
...
... Error reading config: open integration-tests/data/output/testconfig.json:
no such file or directory
I then created a new snap with:
$ sudo apt-get install snapcraft
$ sudo unsquashfs /var/lib/snapd/snaps/snappy-tests_100001.snap
$ sudo vi ./squashfs-root/command-snappy-tests.wrapper
adjust to be:
export GOPATH=$SNAP_USER_DATA/go
mkdir "$GOPATH"
$ adjust ./squashfs-root/snap.yaml
adjust version to be: 0.1+jdstrand1
$ sudo snap install --devmode ./snappy-tests_0.1+jdstrand1_amd64.snap
sudo systemctl stop snappy-autopilot.timer
sudo: no tty present and no askpass program specified
panic: runtime error: invalid memory address or nil pointer dereference
[signal 0xb code=0x1 addr=0x0 pc=0x53b74f]
goroutine 1 [running]:
panic(0x94a020, 0xc8200100e0)
/usr/lib/go-1.6/src/runtime/panic.go:464 +0x3e6
gopkg.in/check%2ev1.(*methodType).PC(0x0, 0x5544e6)
/home/plars/work/snappy/snappy-tests/parts/snappy-tests/go/src/gopkg.in/check.v1/check.go:60
+0x4f
gopkg.in/check%2ev1.(*C).logCaller(0xc8200e61e0, 0x3)
/home/plars/work/snappy/snappy-tests/parts/snappy-tests/go/src/gopkg.in/check.v1/check.go:284
+0xa1
gopkg.in/check%2ev1.(*C).internalCheck(0xc8200e61e0, 0x9f39b8, 0x6, 0x9cda80,
0xc8201970c0, 0x7feac3fb2568, 0xc820026028, 0xc82004fd88, 0x0, 0x1, ...)
/home/plars/work/snappy/snappy-tests/parts/snappy-tests/go/src/gopkg.in/check.v1/helpers.go:216
+0xeaf
gopkg.in/check%2ev1.(*C).Assert(0xc8200e61e0, 0x9cda80, 0xc8201970c0,
0x7feac3fb2568, 0xc820026028, 0xc82004fd88, 0x1, 0x1)
/home/plars/work/snappy/snappy-tests/parts/snappy-tests/go/src/gopkg.in/check.v1/helpers.go:173
+0x8c
github.com/ubuntu-core/snappy/integration-tests/testutils/cli.ExecCommand(0xc8200e61e0,
0xc820013b40, 0x4, 0x4, 0x0, 0x0)
/home/plars/work/snappy/snappy-tests/parts/snappy-tests/go/src/github.com/ubuntu-core/snappy/integration-tests/testutils/cli/cli.go:42
+0x306
snappy/integration-tests/tests.init.1()
/home/plars/work/snappy/snappy-tests/parts/snappy-tests/go/src/snappy/integration-tests/tests/base_test.go:55
+0x16d
snappy/integration-tests/tests.init()
/home/plars/work/snappy/snappy-tests/parts/snappy-tests/go/src/snappy/integration-tests/tests/writablePaths_test.go:107
+0x10c4
main.init()
snappy/integration-tests/tests/_test/_testmain.go:56 +0x4a
I then tried to build it myself:
$ sudo apt-get install git snapcraft
$ export GOPATH=$HOME/work
$ mkdir $GOPATH
$ export PATH=$PATH:$GOPATH
$ git clone https://github.com/plars/snappy-tests.git
$ cd snappy-tests
$ snapcraft
(this may fail; if it does, keep trying until it succeeds per IRC)
...
$ sudo snap install --devmode ./snappy-tests_0.1_amd64.snap
$ snappy-tests -check.f homeInterfaceSuite
sudo systemctl stop snappy-autopilot.timer
sudo: no tty present and no askpass program specified
panic: runtime error: invalid memory address or nil pointer dereference
[signal 0xb code=0x1 addr=0x0 pc=0x531c3f]
goroutine 1 [running]:
panic(0x928e60, 0xc8200100f0)
/usr/lib/go-1.6/src/runtime/panic.go:464 +0x3e6
gopkg.in/check%2ev1.(*methodType).PC(0x0, 0x52ab16)
/home/jamie/snappy-tests/parts/snappy-tests/go/src/gopkg.in/check.v1/check.go:60
+0x4f
gopkg.in/check%2ev1.(*C).logCaller(0xc8200da000, 0x3)
/home/jamie/snappy-tests/parts/snappy-tests/go/src/gopkg.in/check.v1/check.go:284
+0xa1
gopkg.in/check%2ev1.(*C).internalCheck(0xc8200da000, 0x9cf2e0, 0x6, 0x9a9800,
0xc8201a0c00, 0x7f7be51ec590, 0xc820024028, 0xc82004dd70, 0x0, 0x1, ...)
/home/jamie/snappy-tests/parts/snappy-tests/go/src/gopkg.in/check.v1/helpers.go:216
+0xeaf
gopkg.in/check%2ev1.(*C).Assert(0xc8200da000, 0x9a9800, 0xc8201a0c00,
0x7f7be51ec590, 0xc820024028, 0xc82004dd70, 0x1, 0x1)
/home/jamie/snappy-tests/parts/snappy-tests/go/src/gopkg.in/check.v1/helpers.go:173
+0x8c
github.com/ubuntu-core/snappy/integration-tests/testutils/cli.ExecCommand(0xc8200da000,
0xc820013840, 0x4, 0x4, 0x0, 0x0)
/home/jamie/snappy-tests/parts/snappy-tests/go/src/github.com/ubuntu-core/snappy/integration-tests/testutils/cli/cli.go:42
+0x306
snappy/integration-tests/tests.init.1()
/home/jamie/snappy-tests/parts/snappy-tests/go/src/snappy/integration-tests/tests/base_test.go:56
+0x16d
snappy/integration-tests/tests.init()
/home/jamie/snappy-tests/parts/snappy-tests/go/src/snappy/integration-tests/tests/writablePaths_test.go:107
+0xce8
main.init()
snappy/integration-tests/tests/_test/_testmain.go:56 +0x4a
I'm not sure what to do at this point. It seems like adjusting the GOPATH and
creating the dir in your snap will resolve the first issue, but then run into
the next issues.
Paul, can you provide precise steps on how to reproduce?
** Changed in: apparmor (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1579135
Title:
kernel BUG on snap disconnect from within a snap
Status in apparmor package in Ubuntu:
Incomplete
Bug description:
First, a bit of background: I've built a go binary of the upstream
snappy integration tests, and built them into a snap so that we can
easily keep them up to date, and call them from other test suites.
I'm running through the tests in qemu on a current 16 image (built
yesteray), and hitting this most of the time with the homeInterface
Suite tests in particular. The networkInterfaceSuite tests also seem
to produce a similar problem:
sudo snap connect home-consumer:home ubuntu-core:home
[/] Connect home-consumer:home to ubuntu-core:home
home-consumer.writer /home/ubuntu/snap/snappy-tests/100001/writable
sudo snap disconnect home-consumer:home ubuntu-core:home
[ 519.416354] BUG: unable to handle kernel NULL pointer dereference at
0000000000000038
[ 519.417327] IP: [<ffffffff81388eef>] profile_cmp+0x2f/0x180
[ 519.417978] PGD 1f26a067 PUD 1aa4f067 PMD 0
[ 519.418574] Oops: 0000 [#1] SMP
[ 519.419032] Modules linked in: kvm_intel joydev kvm ppdev snd_pcm
snd_timer irqbypass snd soundcore parport_pc pcspkr input_leds floppy parport
evbug psmouse e1000 8250_fintek i2c_piix4 mac_hid pata_acpi serio_raw autofs4
nls_iso8859_1 usb_storage ahci libahci squashfs
[ 519.422747] CPU: 0 PID: 1915 Comm: apparmor_parser Tainted: G W
4.4.0-21-generic #37-Ubuntu
[ 519.423689] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
Ubuntu-1.8.2-1ubuntu1 04/01/2014
[ 519.424627] task: ffff88001d23cb00 ti: ffff88001b58c000 task.ti:
ffff88001b58c000
[ 519.425385] RIP: 0010:[<ffffffff81388eef>] [<ffffffff81388eef>]
profile_cmp+0x2f/0x180
[ 519.426242] RSP: 0018:ffff88001b58fcb0 EFLAGS: 00010086
[ 519.426791] RAX: 0000000000000000 RBX: ffff88001b1b1400 RCX:
0000000000000006
[ 519.427628] RDX: 0000000000000000 RSI: 0000000000000000 RDI:
0000000000000009
[ 519.428405] RBP: ffff88001b58fcc0 R08: 000000000000000a R09:
0000000000000274
[ 519.429127] R10: ffff88001f236890 R11: 0000000000000274 R12:
0000000000000000
[ 519.429956] R13: 000000000000000b R14: 0000000000000000 R15:
ffff88001abff950
[ 519.430957] FS: 00007f0c1609b740(0000) GS:ffff88001fc00000(0000)
knlGS:0000000000000000
[ 519.432256] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 519.433030] CR2: 0000000000000038 CR3: 000000001b14b000 CR4:
00000000000006f0
[ 519.433868] Stack:
[ 519.434204] 000000000000000c ffff88001abff9b0 ffff88001b58fd08
ffffffff8138a0c3
[ 519.435355] 000000011f2b9450 ffff88000000000c ffff88001abff950
ffff88001b1b1760
[ 519.436480] ffff88001f236848 ffff88001abff900 ffff88001f236840
ffff88001b58fd98
[ 519.437609] Call Trace:
[ 519.438007] [<ffffffff8138a0c3>] aa_vec_unique+0x163/0x240
[ 519.438709] [<ffffffff8138e337>] __aa_labelset_update_subtree+0x687/0x820
[ 519.439537] [<ffffffff813811fb>] aa_replace_profiles+0x59b/0xb70
[ 519.440268] [<ffffffff811ec5ae>] ? __kmalloc+0x22e/0x250
[ 519.440944] [<ffffffff81375f1f>] policy_update+0x9f/0x1f0
[ 519.441617] [<ffffffff81376083>] profile_replace+0x13/0x20
[ 519.442299] [<ffffffff8120bf38>] __vfs_write+0x18/0x40
[ 519.443032] [<ffffffff8120c8c9>] vfs_write+0xa9/0x1a0
[ 519.443721] [<ffffffff8120b85f>] ? do_sys_open+0x1bf/0x2a0
[ 519.444416] [<ffffffff8120d585>] SyS_write+0x55/0xc0
[ 519.445042] [<ffffffff818244f2>] entry_SYSCALL_64_fastpath+0x16/0x71
[ 519.445802] Code: 00 55 48 85 ff 48 89 e5 41 54 53 49 89 f4 48 89 fb 0f 84
8b 00 00 00 4d 85 e4 0f 84 aa 00 00 00 48 83 7b 38 00 0f 84 c9 00 00 00 <49> 83
7c 24 38 00 0f 84 e8 00 00 00 48 83 7b 08 00 0f 84 07 01
[ 519.451336] RIP [<ffffffff81388eef>] profile_cmp+0x2f/0x180
[ 519.452088] RSP <ffff88001b58fcb0>
[ 519.452570] CR2: 0000000000000038
[ 519.453032] ---[ end trace 65ff12ee2e7c26af ]---
The details of this test can be found at:
https://github.com/ubuntu-core/snappy/tree/master/integration-tests/data/snaps/home-consumer
Will follow up with more details
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