* [Bug 41212] New: [regression] [3.1-git] ipoib causes kernel panic (NULL pointer dereference)
@ 2011-08-15 15:40 bugzilla-daemon-590EEB7GvNiWaY/ihj7yzEB+6BGkLq7r
[not found] ` <CAAk-MO8EToGY4OhmX1xPN01iAXR9WSsJXWxHG9EVyrSGYP3h5w@mail.gmail.com>
0 siblings, 1 reply; 4+ messages in thread
From: bugzilla-daemon-590EEB7GvNiWaY/ihj7yzEB+6BGkLq7r @ 2011-08-15 15:40 UTC (permalink / raw)
To: linux-rdma-u79uwXL29TY76Z2rM5mHXA
https://bugzilla.kernel.org/show_bug.cgi?id=41212
Summary: [regression] [3.1-git] ipoib causes kernel panic (NULL
pointer dereference)
Product: Networking
Version: 2.5
Kernel Version: 3.1-git
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Other
AssignedTo: acme-f8uhVLnGfZaxAyOMLChx1axOck334EZe@public.gmane.org
ReportedBy: bernd.schubert-97jfqw80gc6171pxa8y+qA@public.gmane.org
CC: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Regression: Yes
Each time when I start IPoIB with any 3.1-rcX git version I tested so far I get
a kernel panic. This didn't happen in 3.0 yet.
fslab2 login: [ 114.392408] EXT4-fs (sdc): barriers disabled
[ 114.449737] EXT4-fs (sdc): mounted filesystem with writeback data mode.
Opts: journal_async_commit,barrier=0,data=writeback
[ 240.944030] BUG: unable to handle kernel NULL pointer dereference at
0000000000000040
[ 240.948007] IP: [<ffffffffa0366ce9>] ipoib_start_xmit+0x39/0x280 [ib_ipoib]
[ 240.948007] PGD 1f964f067 PUD 1f9bf2067 PMD 0
[ 240.948007] Oops: 0000 [#1] SMP
[ 240.948007] CPU 1
[ 240.948007] Modules linked in: ext4 mbcache jbd2 crc16 nfsd ib_umad rdma_ucm
rdma_cm iw_cm ib_addr ib_uverbs ib_ipoib sg ib_cm ib_sa ipv6 sd_mod crc_t10dif
loop arcmsr md_mod pcspkr ib_mthca ib_mad ib_core 8250_pnp fuse af_packet nfs
lockd fscache auth_rpcgss nfs_acl sunrpc btrfs lzo_decompress lzo_compress
zlib_deflate crc32c libcrc32c crypto_hash crypto_algapi ata_generic pata_acpi
e1000 pata_amd sata_nv libata scsi_mod unix [last unloaded: scsi_wait_scan]
[ 240.948007]
[ 240.948007] Pid: 0, comm: kworker/0:0 Not tainted 3.1.0-rc2+ #29 Supermicro
H8DCE/H8DCE
[ 240.948007] RIP: 0010:[<ffffffffa0366ce9>] [<ffffffffa0366ce9>]
ipoib_start_xmit+0x39/0x280 [ib_ipoib]
[ 240.948007] RSP: 0018:ffff8801ffc03c10 EFLAGS: 00010246
[ 240.948007] RAX: 0000000000000000 RBX: ffff8801f99ea000 RCX:
0000000000004420
[ 240.948007] RDX: 0000000000000000 RSI: ffff8801f99ea000 RDI:
ffff8801f9afd500
[ 240.948007] RBP: ffff8801ffc03c40 R08: ffff8801f940d49c R09:
ffff8801f9852240
[ 240.948007] R10: 0000000000000000 R11: 0000000000000020 R12:
ffff8801f9afd500
[ 240.948007] R13: 0000000000000050 R14: ffff8801f99ea600 R15:
ffff8801f9852280
[ 240.948007] FS: 00007f0b66016700(0000) GS:ffff8801ffc00000(0000)
knlGS:0000000000000000
[ 240.948007] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 240.948007] CR2: 0000000000000040 CR3: 00000001f9a65000 CR4:
00000000000006e0
[ 240.948007] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[ 240.948007] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
0000000000000400
[ 240.948007] Process kworker/0:0 (pid: 0, threadinfo ffff8800bfe82000, task
ffff8800bfe6f1a0)
[ 240.948007] Stack:
[ 240.948007] 0000000000000010 ffff8801f9afd500 0000000000004420
0000000000000050
[ 240.948007] ffff8801f99ea000 ffff8801f9852280 ffff8801ffc03ca0
ffffffff812cd5e0
[ 240.948007] 0000000000000001 ffffffffa03721a0 ffffffff8131f680
ffff8801fa110540
[ 240.948007] Call Trace:
[ 240.948007] <IRQ>
[ 240.948007] [<ffffffff812cd5e0>] dev_hard_start_xmit+0x2a0/0x590
[ 240.948007] [<ffffffff8131f680>] ? arp_create+0x70/0x200
[ 240.948007] [<ffffffff812e8e1f>] sch_direct_xmit+0xef/0x1c0
[ 240.948007] [<ffffffff812cd9f9>] dev_queue_xmit+0x129/0x3b0
[ 240.948007] [<ffffffff8131f853>] arp_send+0x43/0x50
[ 240.948007] [<ffffffff8131f96b>] arp_solicit+0x10b/0x240
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^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [Bug 41212] New: [regression] [3.1-git] ipoib causes kernel panic (NULL pointer dereference)
[not found] ` <CAAk-MO8EToGY4OhmX1xPN01iAXR9WSsJXWxHG9EVyrSGYP3h5w-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
@ 2011-08-16 10:34 ` Bernd Schubert
[not found] ` <CAAk-MO9Y4h7scaJEE9aFKw9sp=VF3YZrT+oY2xvQY9tvGhvOTg@mail.gmail.com>
2011-08-18 15:50 ` Roland Dreier
0 siblings, 2 replies; 4+ messages in thread
From: Bernd Schubert @ 2011-08-16 10:34 UTC (permalink / raw)
To: Erez Shitrit
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA, netdev-u79uwXL29TY76Z2rM5mHXA
Hello Erez,
are you sure? Commit 69cce1d1404968f78b177a0314f5822d5afdbbfb is not in
3.0 yet and I also don't see how 3.0 should fail there, as it tests
immediately for "if (likely(skb_dst(skb)"
Thanks,
Bernd
On 08/16/2011 10:06 AM, Erez Shitrit wrote:
> Hi,
> it happened in 3.0 also, if you take the git tag v3.0-rc7 and below it
> will work.
>
> Thanks, Erez
>
> On Mon, Aug 15, 2011 at 6:40 PM, <bugzilla-daemon-590EEB7GvNiWaY/ihj7yzEB+6BGkLq7r@public.gmane.org
> <mailto:bugzilla-daemon-590EEB7GvNiWaY/ihj7yzEB+6BGkLq7r@public.gmane.org>> wrote:
>
> https://bugzilla.kernel.org/show_bug.cgi?id=41212
>
> Summary: [regression] [3.1-git] ipoib causes kernel panic
> (NULL
> pointer dereference)
> Product: Networking
> Version: 2.5
> Kernel Version: 3.1-git
> Platform: All
> OS/Version: Linux
> Tree: Mainline
> Status: NEW
> Severity: normal
> Priority: P1
> Component: Other
> AssignedTo: acme-f8uhVLnGfZaxAyOMLChx1axOck334EZe@public.gmane.org
> <mailto:acme-f8uhVLnGfZaxAyOMLChx1axOck334EZe@public.gmane.org>
> ReportedBy: bernd.schubert-97jfqw80gc6171pxa8y+qA@public.gmane.org
> <mailto:bernd.schubert-97jfqw80gc6171pxa8y+qA@public.gmane.org>
> CC: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> <mailto:linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
> Regression: Yes
>
>
> Each time when I start IPoIB with any 3.1-rcX git version I tested
> so far I get
> a kernel panic. This didn't happen in 3.0 yet.
>
>
> fslab2 login: [ 114.392408] EXT4-fs (sdc): barriers disabled
> [ 114.449737] EXT4-fs (sdc): mounted filesystem with writeback data
> mode.
> Opts: journal_async_commit,barrier=0,data=writeback
> [ 240.944030] BUG: unable to handle kernel NULL pointer dereference at
> 0000000000000040
> [ 240.948007] IP: [<ffffffffa0366ce9>] ipoib_start_xmit+0x39/0x280
> [ib_ipoib]
> [ 240.948007] PGD 1f964f067 PUD 1f9bf2067 PMD 0
> [ 240.948007] Oops: 0000 [#1] SMP
> [ 240.948007] CPU 1
> [ 240.948007] Modules linked in: ext4 mbcache jbd2 crc16 nfsd
> ib_umad rdma_ucm
> rdma_cm iw_cm ib_addr ib_uverbs ib_ipoib sg ib_cm ib_sa ipv6 sd_mod
> crc_t10dif
> loop arcmsr md_mod pcspkr ib_mthca ib_mad ib_core 8250_pnp fuse
> af_packet nfs
> lockd fscache auth_rpcgss nfs_acl sunrpc btrfs lzo_decompress
> lzo_compress
> zlib_deflate crc32c libcrc32c crypto_hash crypto_algapi ata_generic
> pata_acpi
> e1000 pata_amd sata_nv libata scsi_mod unix [last unloaded:
> scsi_wait_scan]
> [ 240.948007]
> [ 240.948007] Pid: 0, comm: kworker/0:0 Not tainted 3.1.0-rc2+ #29
> Supermicro
> H8DCE/H8DCE
> [ 240.948007] RIP: 0010:[<ffffffffa0366ce9>] [<ffffffffa0366ce9>]
> ipoib_start_xmit+0x39/0x280 [ib_ipoib]
> [ 240.948007] RSP: 0018:ffff8801ffc03c10 EFLAGS: 00010246
> [ 240.948007] RAX: 0000000000000000 RBX: ffff8801f99ea000 RCX:
> 0000000000004420
> [ 240.948007] RDX: 0000000000000000 RSI: ffff8801f99ea000 RDI:
> ffff8801f9afd500
> [ 240.948007] RBP: ffff8801ffc03c40 R08: ffff8801f940d49c R09:
> ffff8801f9852240
> [ 240.948007] R10: 0000000000000000 R11: 0000000000000020 R12:
> ffff8801f9afd500
> [ 240.948007] R13: 0000000000000050 R14: ffff8801f99ea600 R15:
> ffff8801f9852280
> [ 240.948007] FS: 00007f0b66016700(0000) GS:ffff8801ffc00000(0000)
> knlGS:0000000000000000
> [ 240.948007] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 240.948007] CR2: 0000000000000040 CR3: 00000001f9a65000 CR4:
> 00000000000006e0
> [ 240.948007] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
> 0000000000000000
> [ 240.948007] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
> 0000000000000400
> [ 240.948007] Process kworker/0:0 (pid: 0, threadinfo
> ffff8800bfe82000, task
> ffff8800bfe6f1a0)
> [ 240.948007] Stack:
> [ 240.948007] 0000000000000010 ffff8801f9afd500 0000000000004420
> 0000000000000050
> [ 240.948007] ffff8801f99ea000 ffff8801f9852280 ffff8801ffc03ca0
> ffffffff812cd5e0
> [ 240.948007] 0000000000000001 ffffffffa03721a0 ffffffff8131f680
> ffff8801fa110540
> [ 240.948007] Call Trace:
> [ 240.948007] <IRQ>
> [ 240.948007] [<ffffffff812cd5e0>] dev_hard_start_xmit+0x2a0/0x590
> [ 240.948007] [<ffffffff8131f680>] ? arp_create+0x70/0x200
> [ 240.948007] [<ffffffff812e8e1f>] sch_direct_xmit+0xef/0x1c0
> [ 240.948007] [<ffffffff812cd9f9>] dev_queue_xmit+0x129/0x3b0
> [ 240.948007] [<ffffffff8131f853>] arp_send+0x43/0x50
> [ 240.948007] [<ffffffff8131f96b>] arp_solicit+0x10b/0x240
>
> --
> Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email
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^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [Bug 41212] New: [regression] [3.1-git] ipoib causes kernel panic (NULL pointer dereference)
[not found] ` <CAAk-MO9Y4h7scaJEE9aFKw9sp=VF3YZrT+oY2xvQY9tvGhvOTg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
@ 2011-08-18 11:44 ` Bernd Schubert
0 siblings, 0 replies; 4+ messages in thread
From: Bernd Schubert @ 2011-08-18 11:44 UTC (permalink / raw)
To: Erez Shitrit
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA, netdev-u79uwXL29TY76Z2rM5mHXA
Hello Erez,
maybe it is another bug? Do you have the stack trace?
Any I guess you are the networking expert ;) I only looked at the
3.1-ipoib issue, as it prevented me too boot at all and I couldn't do my
real work...
Cheers,
Bernd
On 08/17/2011 11:06 AM, Erez Shitrit wrote:
> Hi Bernd,
> you are right, but it still happened. (also no changes in IPoIB between
> the tags, it might connected to the networking? )
>
> Thanks, Erez
>
> On Tue, Aug 16, 2011 at 1:34 PM, Bernd Schubert
> <bernd.schubert-97jfqw80gc6171pxa8y+qA@public.gmane.org <mailto:bernd.schubert-97jfqw80gc6171pxa8y+qA@public.gmane.org>> wrote:
>
> Hello Erez,
>
> are you sure? Commit 69cce1d1404968f78b177a0314f582 2d5afdbbfb is
> not in 3.0 yet and I also don't see how 3.0 should fail there, as it
> tests immediately for "if (likely(skb_dst(skb)"
>
>
> Thanks,
> Bernd
>
>
> On 08/16/2011 10:06 AM, Erez Shitrit wrote:
>
> Hi,
> it happened in 3.0 also, if you take the git tag v3.0-rc7 and
> below it
> will work.
>
> Thanks, Erez
>
> On Mon, Aug 15, 2011 at 6:40 PM, <bugzilla-daemon@bugzilla.
> kernel.org <mailto:bugzilla-daemon-590EEB7GvNiWaY/ihj7yzEB+6BGkLq7r@public.gmane.org>
> <mailto:bugzilla-daemon@ bugzilla.kernel.org
> <mailto:bugzilla-daemon-590EEB7GvNiWaY/ihj7yzEB+6BGkLq7r@public.gmane.org>>> wrote:
>
> https://bugzilla.kernel.org/ show_bug.cgi?id=41212
> <https://bugzilla.kernel.org/show_bug.cgi?id=41212>
>
> Summary: [regression] [3.1-git] ipoib causes
> kernel panic
> (NULL
> pointer dereference)
> Product: Networking
> Version: 2.5
> Kernel Version: 3.1-git
> Platform: All
> OS/Version: Linux
> Tree: Mainline
> Status: NEW
> Severity: normal
> Priority: P1
> Component: Other
> AssignedTo: acme-f8uhVLnGfZaxAyOMLChx1axOck334EZe@public.gmane.org
> <mailto:acme-f8uhVLnGfZaxAyOMLChx1axOck334EZe@public.gmane.org>
> <mailto:acme@ghostprotocols. net <mailto:acme-f8uhVLnGfZaxAyOMLChx1axOck334EZe@public.gmane.org>>
>
> ReportedBy: bernd.schubert-97jfqw80gc6171pxa8y+qA@public.gmane.org
> <mailto:bernd.schubert-97jfqw80gc6171pxa8y+qA@public.gmane.org>
> <mailto:bernd.schubert@ fastmail.fm
> <mailto:bernd.schubert-97jfqw80gc6171pxa8y+qA@public.gmane.org>>
>
> CC: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> <mailto:linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
> <mailto:linux-rdma@vger. kernel.org
> <mailto:linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>>
>
> Regression: Yes
>
>
> Each time when I start IPoIB with any 3.1-rcX git version I
> tested
> so far I get
> a kernel panic. This didn't happen in 3.0 yet.
>
>
> fslab2 login: [ 114.392408] EXT4-fs (sdc): barriers disabled
> [ 114.449737] EXT4-fs (sdc): mounted filesystem with
> writeback data
> mode.
> Opts: journal_async_commit,barrier= 0,data=writeback
> [ 240.944030] BUG: unable to handle kernel NULL pointer
> dereference at
> 0000000000000040
> [ 240.948007] IP: [<ffffffffa0366ce9>]
> ipoib_start_xmit+0x39/0x280
> [ib_ipoib]
> [ 240.948007] PGD 1f964f067 PUD 1f9bf2067 PMD 0
> [ 240.948007] Oops: 0000 [#1] SMP
> [ 240.948007] CPU 1
> [ 240.948007] Modules linked in: ext4 mbcache jbd2 crc16 nfsd
> ib_umad rdma_ucm
> rdma_cm iw_cm ib_addr ib_uverbs ib_ipoib sg ib_cm ib_sa ipv6
> sd_mod
> crc_t10dif
> loop arcmsr md_mod pcspkr ib_mthca ib_mad ib_core 8250_pnp fuse
> af_packet nfs
> lockd fscache auth_rpcgss nfs_acl sunrpc btrfs lzo_decompress
> lzo_compress
> zlib_deflate crc32c libcrc32c crypto_hash crypto_algapi
> ata_generic
> pata_acpi
> e1000 pata_amd sata_nv libata scsi_mod unix [last unloaded:
> scsi_wait_scan]
> [ 240.948007]
> [ 240.948007] Pid: 0, comm: kworker/0:0 Not tainted
> 3.1.0-rc2+ #29
> Supermicro
> H8DCE/H8DCE
> [ 240.948007] RIP: 0010:[<ffffffffa0366ce9>]
> [<ffffffffa0366ce9>]
> ipoib_start_xmit+0x39/0x280 [ib_ipoib]
> [ 240.948007] RSP: 0018:ffff8801ffc03c10 EFLAGS: 00010246
> [ 240.948007] RAX: 0000000000000000 RBX: ffff8801f99ea000 RCX:
> 0000000000004420
> [ 240.948007] RDX: 0000000000000000 RSI: ffff8801f99ea000 RDI:
> ffff8801f9afd500
> [ 240.948007] RBP: ffff8801ffc03c40 R08: ffff8801f940d49c R09:
> ffff8801f9852240
> [ 240.948007] R10: 0000000000000000 R11: 0000000000000020 R12:
> ffff8801f9afd500
> [ 240.948007] R13: 0000000000000050 R14: ffff8801f99ea600 R15:
> ffff8801f9852280
> [ 240.948007] FS: 00007f0b66016700(0000)
> GS:ffff8801ffc00000(0000)
> knlGS:0000000000000000
> [ 240.948007] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 240.948007] CR2: 0000000000000040 CR3: 00000001f9a65000 CR4:
> 00000000000006e0
> [ 240.948007] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
> 0000000000000000
> [ 240.948007] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
> 0000000000000400
> [ 240.948007] Process kworker/0:0 (pid: 0, threadinfo
> ffff8800bfe82000, task
> ffff8800bfe6f1a0)
> [ 240.948007] Stack:
> [ 240.948007] 0000000000000010 ffff8801f9afd500
> 0000000000004420
> 0000000000000050
> [ 240.948007] ffff8801f99ea000 ffff8801f9852280
> ffff8801ffc03ca0
> ffffffff812cd5e0
> [ 240.948007] 0000000000000001 ffffffffa03721a0
> ffffffff8131f680
> ffff8801fa110540
> [ 240.948007] Call Trace:
> [ 240.948007] <IRQ>
> [ 240.948007] [<ffffffff812cd5e0>]
> dev_hard_start_xmit+0x2a0/ 0x590
> [ 240.948007] [<ffffffff8131f680>] ? arp_create+0x70/0x200
> [ 240.948007] [<ffffffff812e8e1f>] sch_direct_xmit+0xef/0x1c0
> [ 240.948007] [<ffffffff812cd9f9>] dev_queue_xmit+0x129/0x3b0
> [ 240.948007] [<ffffffff8131f853>] arp_send+0x43/0x50
> [ 240.948007] [<ffffffff8131f96b>] arp_solicit+0x10b/0x240
>
> --
> Configure bugmail: https://bugzilla.kernel.org/
> userprefs.cgi?tab=email
> <https://bugzilla.kernel.org/userprefs.cgi?tab=email>
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^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [Bug 41212] New: [regression] [3.1-git] ipoib causes kernel panic (NULL pointer dereference)
2011-08-16 10:34 ` Bernd Schubert
[not found] ` <CAAk-MO9Y4h7scaJEE9aFKw9sp=VF3YZrT+oY2xvQY9tvGhvOTg@mail.gmail.com>
@ 2011-08-18 15:50 ` Roland Dreier
1 sibling, 0 replies; 4+ messages in thread
From: Roland Dreier @ 2011-08-18 15:50 UTC (permalink / raw)
To: Bernd Schubert; +Cc: Erez Shitrit, linux-rdma, netdev
Remember that kernels after the release of 3.0 but before 3.1-rc1 will
report their version as 3.0 (even though they may have lots of commits
that went in after the 3.0 release). Could that be the explanation?
On Tue, Aug 16, 2011 at 3:34 AM, Bernd Schubert
<bernd.schubert@fastmail.fm> wrote:
> Hello Erez,
>
> are you sure? Commit 69cce1d1404968f78b177a0314f5822d5afdbbfb is not in 3.0
> yet and I also don't see how 3.0 should fail there, as it tests immediately
> for "if (likely(skb_dst(skb)"
>
>
> Thanks,
> Bernd
>
> On 08/16/2011 10:06 AM, Erez Shitrit wrote:
>>
>> Hi,
>> it happened in 3.0 also, if you take the git tag v3.0-rc7 and below it
>> will work.
>>
>> Thanks, Erez
^ permalink raw reply [flat|nested] 4+ messages in thread
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2011-08-15 15:40 [Bug 41212] New: [regression] [3.1-git] ipoib causes kernel panic (NULL pointer dereference) bugzilla-daemon-590EEB7GvNiWaY/ihj7yzEB+6BGkLq7r
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2011-08-16 10:34 ` Bernd Schubert
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2011-08-18 11:44 ` Bernd Schubert
2011-08-18 15:50 ` Roland Dreier
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