From: Doug Ledford <dledford@redhat.com>
To: Linux Netdev List <netdev@vger.kernel.org>
Subject: mlx5 core/en oops in 4.6-rc6+
Date: Thu, 5 May 2016 12:00:42 -0400 [thread overview]
Message-ID: <56df9c0a-39dd-6e07-9466-23195dc60860@redhat.com> (raw)
[-- Attachment #1: Type: text/plain, Size: 4931 bytes --]
Just had this pop up during testing, happened very soon after bootup:
[ 47.235925] BUG: unable to handle kernel NULL pointer dereference at
00000000000001e8
[ 47.245057] IP: [<ffffffffc0328b9c>] mlx5e_sq_xmit+0x1c/0xd80 [mlx5_core]
[ 47.252822] PGD 0
[ 47.255218] Oops: 0000 [#1] SMP
[ 47.259070] Modules linked in: sch_mqprio bridge 8021q garp mrp stp
llc ib_iser libiscsi scsi_transport_iscsi ib_srp scsi_transport_srp
ib_ipoib rdma_ucm ib_ucm ib_uverbs ib_umad rdma_cm ib_cm iw_cm ib_sa
ib_mad x86_pkg_temp_thermal coretd
[ 47.352984] CPU: 18 PID: 1358 Comm: NetworkManager Not tainted
4.6.0-rc6-00004-g7199787 #102
[ 47.362460] Hardware name: Dell Inc. PowerEdge R430/03XKDV, BIOS
1.6.2 01/08/2016
[ 47.370869] task: ffff88103369d000 ti: ffff88103751c000 task.ti:
ffff88103751c000
[ 47.379263] RIP: 0010:[<ffffffffc0328b9c>] [<ffffffffc0328b9c>]
mlx5e_sq_xmit+0x1c/0xd80 [mlx5_core]
[ 47.389627] RSP: 0018:ffff88103751f7d0 EFLAGS: 00010282
[ 47.395574] RAX: ffff880fe6f51d00 RBX: 0000000000000000 RCX:
0000000000000081
[ 47.403571] RDX: ffff880ff1dc3000 RSI: ffff880fe6f51d00 RDI:
0000000000000000
[ 47.411561] RBP: ffff88103751f828 R08: 0000000000020c80 R09:
ffffffff81871e04
[ 47.419563] R10: ffffea003f9bd400 R11: ffff88100116de00 R12:
000000000000003e
[ 47.427566] R13: ffff880fe6f51d00 R14: ffff8810240d0090 R15:
ffff8810240d0068
[ 47.435557] FS: 00007fd79b882dc0(0000) GS:ffff88103ee40000(0000)
knlGS:0000000000000000
[ 47.444625] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 47.451062] CR2: 00000000000001e8 CR3: 0000001cf86c5000 CR4:
00000000001406e0
[ 47.459053] Stack:
[ 47.461306] ffffffff81875480 ffff880fe6f50c00 ffff881d02f9b800
ffff88103751f838
[ 47.469647] ffffffff81a08415 ffff88103751f818 ffff880fe6f51d00
000000000000003e
[ 47.477964] ffff881d02f9bd00 ffff8810240d0090 ffff8810240d0068
ffff88103751f838
[ 47.486279] Call Trace:
[ 47.489019] [<ffffffff81875480>] ? consume_skb+0x80/0x150
[ 47.495178] [<ffffffff81a08415>] ? packet_rcv+0x65/0x6d0
[ 47.501244] [<ffffffffc03299ae>] mlx5e_xmit+0x2e/0x40 [mlx5_core]
[ 47.508169] [<ffffffff818959d4>] dev_hard_start_xmit+0x384/0x650
[ 47.515007] [<ffffffff818951bb>] ? validate_xmit_skb.isra.80+0x4b/0x4e0
[ 47.522516] [<ffffffff818d036f>] sch_direct_xmit+0x19f/0x360
[ 47.528963] [<ffffffff81896565>] __dev_queue_xmit+0x6e5/0xaa0
[ 47.535502] [<ffffffff81875480>] ? consume_skb+0x80/0x150
[ 47.542723] [<ffffffff81896958>] dev_queue_xmit+0x18/0x30
[ 47.549856] [<ffffffffc08d1d54>]
vlan_dev_hard_start_xmit+0x104/0x210 [8021q]
[ 47.558933] [<ffffffff818959d4>] dev_hard_start_xmit+0x384/0x650
[ 47.566738] [<ffffffff8189675a>] __dev_queue_xmit+0x8da/0xaa0
[ 47.574246] [<ffffffff81896958>] dev_queue_xmit+0x18/0x30
[ 47.581349] [<ffffffff818a2d07>] neigh_connected_output+0x107/0x170
[ 47.589433] [<ffffffff819a3e9f>] ip6_finish_output2+0x23f/0x720
[ 47.597128] [<ffffffff81430f32>] ? selinux_ipv6_postroute+0x22/0x30
[ 47.605207] [<ffffffff819a666b>] ip6_finish_output+0x13b/0x1e0
[ 47.612809] [<ffffffff819a6777>] ip6_output+0x67/0x1c0
[ 47.619619] [<ffffffff819a6530>] ? ip6_fragment+0xd80/0xd80
[ 47.626903] [<ffffffff819fb80d>] ip6_local_out+0x4d/0x60
[ 47.633884] [<ffffffff819a703b>] ip6_send_skb+0x2b/0xb0
[ 47.640773] [<ffffffff819a713d>] ip6_push_pending_frames+0x7d/0x90
[ 47.648710] [<ffffffff819d533d>] rawv6_sendmsg+0xd2d/0x1210
[ 47.655938] [<ffffffff8128f70a>] ? do_wp_page+0x3ba/0x910
[ 47.662944] [<ffffffff8142a970>] ? sock_has_perm+0x80/0xb0
[ 47.670020] [<ffffffff8194f2c7>] inet_sendmsg+0x97/0xf0
[ 47.676778] [<ffffffff818673f8>] sock_sendmsg+0x58/0x90
[ 47.683505] [<ffffffff81868148>] SYSC_sendto+0x138/0x1b0
[ 47.690302] [<ffffffff8109d5a8>] ? __do_page_fault+0x338/0x9d0
[ 47.697656] [<ffffffff8116b131>] ? ktime_get_with_offset+0x71/0x130
[ 47.705481] [<ffffffff81163ee7>] ? posix_get_boottime+0x37/0x60
[ 47.712904] [<ffffffff81868b36>] SyS_sendto+0x16/0x20
[ 47.719346] [<ffffffff81a336b2>] entry_SYSCALL_64_fastpath+0x1a/0xa4
[ 47.727230] Code: 05 a9 9f 03 00 01 66 31 47 48 5d c3 0f 1f 00 0f 1f
44 00 00 55 48 89 e5 41 57 41 56 41 55 49 89 f5 41 54 53 48 89 fb 48 83
ec 30 <0f> b7 87 e8 01 00 00 0f b6 8f ea 01 00 00 45 8b 95 80 00 00 00
[ 47.750336] RIP [<ffffffffc0328b9c>] mlx5e_sq_xmit+0x1c/0xd80
[mlx5_core]
[ 47.758755] RSP <ffff88103751f7d0>
[ 47.763368] CR2: 00000000000001e8
[ 47.767779] ---[ end trace 35565b04ca44e521 ]---
It appears to be intermittent as this machine has booted this kernel
multiple times without hitting this. Network setup includes both vlan
and non-vlan interfaces. If you need more info from me, please include
me on the Cc: as I don't follow netdev@
--
Doug Ledford <dledford@redhat.com>
GPG KeyID: 0E572FDD
[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 884 bytes --]
next reply other threads:[~2016-05-05 16:00 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-05 16:00 Doug Ledford [this message]
2016-05-05 16:42 ` mlx5 core/en oops in 4.6-rc6+ Saeed Mahameed
2016-05-05 17:16 ` Doug Ledford
2016-05-05 20:51 ` Saeed Mahameed
2016-05-12 17:28 ` Doug Ledford
2016-05-19 17:13 ` Eran Ben Elisha
2016-06-08 12:48 ` Doug Ledford
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=56df9c0a-39dd-6e07-9466-23195dc60860@redhat.com \
--to=dledford@redhat.com \
--cc=netdev@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.