lttng team mailing list archive
-
lttng team
-
Mailing list archive
-
Message #05533
[Bug 1841766] Re: ubuntu_lttng_smoke_test crash with B-5.0 AWS/Azure/GCP
This bug was fixed in the package lttng-modules -
2.10.8-1ubuntu1~18.04.1
---------------
lttng-modules (2.10.8-1ubuntu1~18.04.1) bionic; urgency=medium
* Fix kernel crash on Bionic with 5.0.0 kernels (LP: #1841766)
- Initial backport for Bionic to fix issues with 5.0.0
kernels.
lttng-modules (2.10.8-1ubuntu1) disco; urgency=medium
* Fix Linux 5.0 dkms build issues (LP: #1813062)
- Minor patch wiggle backports of upstream commits:
[80bb260] Fix: Remove 'type' argument from access_ok()
function (v5.0)
[cef5d79] Fix: signal: Remove SEND_SIG_FORCED (v4.20)
[b90a7f3] Fix: signal: Distinguish between kernel_siginfo and
siginfo
[b9dbdfe] Fix: Replace pointer values with task->tk_pid and
rpc_clnt->cl_clid
[28fef30] Fix: SUNRPC: Simplify defining common RPC trace
events (v5.0)
lttng-modules (2.10.8-1) unstable; urgency=medium
* [7037820] New upstream version 2.10.8
* [9138c6b] Bump standard to 4.2.1, no changes necessary
lttng-modules (2.10.7-1) unstable; urgency=medium
* [a2b641e] New upstream version 2.10.7
* [473eab3] Drop patch merged upstream
* [8237ded] Bump standard to 4.2.0, no changes necessary
lttng-modules (2.10.6-2) unstable; urgency=medium
* [4005ba5] Add patch to fix build on linux 4.16
lttng-modules (2.10.6-1) unstable; urgency=medium
* [60f9658] New upstream version 2.10.6
* [e1998ce] Drop patch merged upstream
* [36dee0d] Use salsa canonical uri in VCS-Browser
* [8542a9d] Bump standard to 4.1.4, no changes necessary
-- Kleber Sacilotto de Souza <kleber.souza@xxxxxxxxxxxxx> Thu, 29 Aug
2019 17:51:23 +0200
** Changed in: lttng-modules (Ubuntu Bionic)
Status: Fix Committed => Fix Released
--
You received this bug notification because you are a member of Ubuntu
LTTng, which is subscribed to lttng-modules in Ubuntu.
Matching subscriptions: lttng-modules-bugs
https://bugs.launchpad.net/bugs/1841766
Title:
ubuntu_lttng_smoke_test crash with B-5.0 AWS/Azure/GCP
Status in ubuntu-kernel-tests:
New
Status in linux-aws-edge package in Ubuntu:
Invalid
Status in lttng-modules package in Ubuntu:
Invalid
Status in linux-aws-edge source package in Bionic:
Invalid
Status in lttng-modules source package in Bionic:
Fix Released
Bug description:
[Impact]
Test will crash and hang, until timeout on jenkins.
This test passed with B-4.15 AWS, and D-5.0 AWS, just not B-5.0 AWS
There is no report and no obvious failure on the jenkins output (just
marked as build aborted), this can only be found by tailing the syslog
when you run the test.
Test output:
Running '/home/ubuntu/autotest/client/tests/ubuntu_lttng_smoke_test/ubuntu_lttng_smoke_test.sh'
[stdout] == lttng smoke test of session create/destroy ==
[stdout] Session test-kernel-session created.
[stdout] Traces will be written in /tmp/lttng-kernel-trace-6325-session
[stdout] PASSED (lttng create)
[stdout] Session test-kernel-session destroyed
[stdout] PASSED (lttng destroy)
[stdout]
[stdout] == lttng smoke test trace context switches ==
[stdout] Session test-kernel-session created.
[stdout] Traces will be written in /tmp/lttng-kernel-trace-6325-session
[stdout] PASSED (lttng create)
syslog output:
kernel: [ 253.282158] lttng_kretprobes: loading out-of-tree module taints kernel.
kernel: [ 253.282191] lttng_kretprobes: module verification failed: signature and/or required key missing - tainting kernel
kernel: [ 253.293676] BUG: unable to handle kernel paging request at 0000000000025534
kernel: [ 253.296613] #PF error: [normal kernel read fault]
kernel: [ 253.298623] PGD 0 P4D 0
kernel: [ 253.299783] Oops: 0000 [#1] SMP PTI
kernel: [ 253.301313] CPU: 3 PID: 955 Comm: lttng-sessiond Tainted: G OE 5.0.0-1014-aws #16~18.04.1-Ubuntu
kernel: [ 253.305391] Hardware name: Amazon EC2 m5.xlarge/, BIOS 1.0 10/16/2017
kernel: [ 253.308102] RIP: 0010:lttng_tracepoint_notify+0x172/0x210 [lttng_tracer]
kernel: [ 253.310886] Code: eb 1a 49 39 c6 0f 85 ab 00 00 00 49 8b 55 10 41 83 c4 01 44 39 a2 8c 02 00 00 76 a3 48 8b 92 90 02 00 00 49 63 c4 4c 63 34 82 <49> 8b 1e 48 89 df e8 33 fb ff ff 48 85 c0 49 89 c7 74 52 49 8b 47
kernel: [ 253.318387] RSP: 0018:ffffb9c80232fbd8 EFLAGS: 00010246
kernel: [ 253.320596] RAX: 0000000000000000 RBX: ffff9a27cbec9c00 RCX: 0000000000000041
kernel: [ 253.323556] RDX: ffffffffc0456a0c RSI: 0000000000000001 RDI: ffffffffc0898100
kernel: [ 253.326507] RBP: ffffb9c80232fc08 R08: ffff9a27d2ba70c0 R09: ffff9a27d2403680
kernel: [ 253.329460] R10: ffffb9c80232fb48 R11: 00000000ffffffff R12: 0000000000000000
kernel: [ 253.332420] R13: ffff9a27cbec9c00 R14: 0000000000025534 R15: ffffffffc0898740
kernel: [ 253.335375] FS: 00007f26e1d49700(0000) GS:ffff9a27d2b80000(0000) knlGS:0000000000000000
kernel: [ 253.338700] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kernel: [ 253.341118] CR2: 0000000000025534 CR3: 000000040c86c003 CR4: 00000000007606e0
kernel: [ 253.345464] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
kernel: [ 253.349798] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
kernel: [ 253.354126] PKRU: 55555554
kernel: [ 253.356719] Call Trace:
kernel: [ 253.359210] register_tracepoint_module_notifier+0x57/0x80
kernel: [ 253.362856] ? 0xffffffffc08d7000
kernel: [ 253.365675] lttng_tracepoint_init+0x45/0xc40 [lttng_tracer]
kernel: [ 253.369380] lttng_events_init+0xbc/0x233 [lttng_tracer]
kernel: [ 253.372952] ? 0xffffffffc08d7000
kernel: [ 253.375739] do_one_initcall+0x4a/0x1c9
kernel: [ 253.378733] ? _cond_resched+0x19/0x40
kernel: [ 253.381693] ? kmem_cache_alloc_trace+0x151/0x1c0
kernel: [ 253.385037] do_init_module+0x5f/0x216
kernel: [ 253.387999] load_module+0x19f6/0x20a0
kernel: [ 253.390956] __do_sys_finit_module+0xfc/0x120
kernel: [ 253.394153] ? __do_sys_finit_module+0xfc/0x120
kernel: [ 253.397416] __x64_sys_finit_module+0x1a/0x20
kernel: [ 253.400618] do_syscall_64+0x5a/0x120
kernel: [ 253.403547] entry_SYSCALL_64_after_hwframe+0x44/0xa9
kernel: [ 253.407035] RIP: 0033:0x7f26e738d839
kernel: [ 253.409949] Code: 00 f3 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 1f f6 2c 00 f7 d8 64 89 01 48
kernel: [ 253.421539] RSP: 002b:00007f26e1d38758 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
kernel: [ 253.427373] RAX: ffffffffffffffda RBX: 00007f26cc004d70 RCX: 00007f26e738d839
kernel: [ 253.431692] RDX: 0000000000000000 RSI: 00007f26e8d0a145 RDI: 0000000000000030
kernel: [ 253.435978] RBP: 00007f26e8d0a145 R08: 0000000000000000 R09: 00007f26cc004b00
kernel: [ 253.440270] R10: 0000000000000030 R11: 0000000000000246 R12: 0000000000000000
kernel: [ 253.444581] R13: 00007f26cc004570 R14: 0000000000000000 R15: 00007f26cc004b00
kernel: [ 253.448853] Modules linked in: lttng_tracer(OE+) lttng_statedump(OE) lttng_kprobes(OE) lttng_clock(OE) lttng_lib_ring_buffer(OE) lttng_kretprobes(OE) ppdev parport_pc parport serio_raw sch_fq_codel ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables x_tables btrfs zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 crypto_simd cryptd glue_helper ena
kernel: [ 253.478768] CR2: 0000000000025534
kernel: [ 253.481575] ---[ end trace 9c47de0da4f80343 ]---
kernel: [ 253.484885] RIP: 0010:lttng_tracepoint_notify+0x172/0x210 [lttng_tracer]
kernel: [ 253.489142] Code: eb 1a 49 39 c6 0f 85 ab 00 00 00 49 8b 55 10 41 83 c4 01 44 39 a2 8c 02 00 00 76 a3 48 8b 92 90 02 00 00 49 63 c4 4c 63 34 82 <49> 8b 1e 48 89 df e8 33 fb ff ff 48 85 c0 49 89 c7 74 52 49 8b 47
kernel: [ 253.500676] RSP: 0018:ffffb9c80232fbd8 EFLAGS: 00010246
kernel: [ 253.504223] RAX: 0000000000000000 RBX: ffff9a27cbec9c00 RCX: 0000000000000041
kernel: [ 253.508498] RDX: ffffffffc0456a0c RSI: 0000000000000001 RDI: ffffffffc0898100
kernel: [ 253.512783] RBP: ffffb9c80232fc08 R08: ffff9a27d2ba70c0 R09: ffff9a27d2403680
kernel: [ 253.517125] R10: ffffb9c80232fb48 R11: 00000000ffffffff R12: 0000000000000000
kernel: [ 253.521421] R13: ffff9a27cbec9c00 R14: 0000000000025534 R15: ffffffffc0898740
kernel: [ 253.525702] FS: 00007f26e1d49700(0000) GS:ffff9a27d2b80000(0000) knlGS:0000000000000000
kernel: [ 253.531708] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kernel: [ 253.535444] CR2: 0000000000025534 CR3: 000000040c86c003 CR4: 00000000007606e0
kernel: [ 253.539722] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
kernel: [ 253.544020] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
kernel: [ 253.548300] PKRU: 55555554
I am proposing we backport the lttng-modules from Disco
(2.10.8-1ubuntu1) to fix the issues with most recent kernel.
[Test Case]
- Install lttng-modules-dkms
- load lttng-tracer module
I have built the package on bionic and load-tested with linux 4.15 and
some 5.0 backports.
[Regression Potential]
Backporting a newer version to Bionic has the potential to break compilation or users with not up-to-date 4.15 kernels.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu-kernel-tests/+bug/1841766/+subscriptions
References