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From: Bob Tracy <rct@gherkin.frus.com>
To: "Maciej W. Rozycki" <macro@linux-mips.org>
Cc: linux-kernel@vger.kernel.org, debian-alpha@lists.debian.org,
	mcree@orcon.net.nz, jay.estabrook@gmail.com, mattst88@gmail.com
Subject: Re: [BUG] machine check Oops on Alpha
Date: Tue, 19 Apr 2016 18:56:57 -0500	[thread overview]
Message-ID: <20160419235657.GA4404@gherkin.frus.com> (raw)
In-Reply-To: <20160419025243.GA32734@gherkin.frus.com>

[-- Attachment #1: Type: text/plain, Size: 599 bytes --]

On Mon, Apr 18, 2016 at 09:52:43PM -0500, Bob Tracy wrote:
> 4.6.0-rc4 build complete, including suggested (by Alan Young) "Verbose
> Machine Checks" option set to level 2 by default.  System rebooted, and
> now we wait...  Thanks for everyone's continued patience.

Within three minutes of rebooting, I got a machine check, but perhaps
significantly, no "Oops".  I'm guessing the only reason I'm seeing the
ECC errors now (haven't seen them before) is because of the stepped-up
debug output.  Syslog output attached...

Machine has been stable since the machine check.  Kernel is 4.6.0-rc4.

--Bob

[-- Attachment #2: machine_check --]
[-- Type: text/plain, Size: 5586 bytes --]

Apr 18 23:51:29 smirkin kernel: machine check: LA: fffffc0000006000
Apr 18 23:51:29 smirkin kernel: CIA machine check NOT expected!!!
Apr 18 23:51:29 smirkin kernel: CIA machine check: vector=0x630 pc=0xfffffc00005b66ac code=0x86
Apr 18 23:51:29 smirkin kernel: machine check type: correctable ECC error (retryable)
Apr 18 23:51:29 smirkin kernel: pc = [<fffffc00005b66ac>]  ra = [<fffffc00003a5324>]  ps = 0000    Not tainted
Apr 18 23:51:29 smirkin kernel: pc is at clear_page+0x3c/0xc4
Apr 18 23:51:29 smirkin kernel: ra is at get_page_from_freelist+0x524/0xa20
Apr 18 23:51:29 smirkin kernel: v0 = 0000000000000007  t0 = 6db6db6db6db6db7  t1 = fffffc0000000000
Apr 18 23:51:29 smirkin kernel: t2 = fffffc005c3786e0  t3 = fffffc0000d445f0  t4 = fffffc0000ad0a38
Apr 18 23:51:29 smirkin kernel: t5 = 00000000001fffff  t6 = 00000000ffffffff  t7 = fffffc005cf54000
Apr 18 23:51:29 smirkin kernel: a0 = fffffc00025ede40  a1 = 0000000000000000  a2 = 000000000000032e
Apr 18 23:51:29 smirkin kernel: a3 = fffffc0000c83a50  a4 = 0000000000000000  a5 = 0000000000000000
Apr 18 23:51:29 smirkin kernel: t8 = fffffc0000ad0aa0  t9 = fffffc0000ad0aa0  t10= fffffc0000d44608
Apr 18 23:51:29 smirkin kernel: t11= 0000000000000000  pv = fffffc00005b6670  at = 0000000000000400
Apr 18 23:51:29 smirkin kernel: gp = fffffc0000cb0aa0  sp = fffffc005cf57ba0
Apr 18 23:51:29 smirkin kernel:   +       0 8000000000000068 0000003800000018
Apr 18 23:51:29 smirkin kernel:   +      10 0000000000000086 ffffff00025edddf
Apr 18 23:51:29 smirkin kernel:   +      20 0000000000005700 fffffff0c5ffffff
Apr 18 23:51:29 smirkin kernel:   +      30 0000000100000000 0000000000000000
Apr 18 23:51:29 smirkin kernel:   +      40 0000000000000000 0000000000000000
Apr 18 23:51:29 smirkin kernel:   +      50 0000000000000000 0000000000000000
Apr 18 23:51:29 smirkin kernel:   +      60 0000000000000000 00000000000002c0
Apr 18 23:51:30 smirkin kernel: machine check: LA: fffffc0000006000
Apr 18 23:51:30 smirkin kernel: CIA machine check NOT expected!!!
Apr 18 23:51:30 smirkin kernel: CIA machine check: vector=0x630 pc=0x1200124c8 code=0x86
Apr 18 23:51:30 smirkin kernel: machine check type: correctable ECC error (retryable)
Apr 18 23:51:30 smirkin kernel: pc = [<00000001200124c8>]  ra = [<0000000120012480>]  ps = 0008    Not tainted
Apr 18 23:51:30 smirkin kernel: pc is at 0x1200124c8
Apr 18 23:51:30 smirkin kernel: ra is at 0x120012480
Apr 18 23:51:30 smirkin kernel: v0 = 0000000120a51c90  t0 = 0000000000000000  t1 = 0000000000000001
Apr 18 23:51:30 smirkin kernel: t2 = 0000000120a530f0  t3 = 0000000120255638  t4 = 0000000000000000
Apr 18 23:51:30 smirkin kernel: t5 = 0000000120255620  t6 = 0000000000000001  t7 = 0000000000000020
Apr 18 23:51:30 smirkin kernel: a0 = 0000000120a51d40  a1 = 0000000000000000  a2 = 0000000000000008
Apr 18 23:51:30 smirkin kernel: a3 = 0000020000038010  a4 = 0000000000000000  a5 = 000000000000003e
Apr 18 23:51:30 smirkin kernel: t8 = 0000000000000001  t9 = 1999999999999999  t10= 0000000000000000
Apr 18 23:51:30 smirkin kernel: t11= 0000000000000001  pv = 0000000000000000  at = 0000000000000400
Apr 18 23:51:30 smirkin kernel: gp = 00000001200440f0  sp = fffffc005cf58000
Apr 18 23:51:30 smirkin kernel:   +       0 8000000000000068 0000003800000018
Apr 18 23:51:30 smirkin kernel:   +      10 0000000000000086 ffffff00025edddf
Apr 18 23:51:30 smirkin kernel:   +      20 0000000000005700 fffffff0c5ffffff
Apr 18 23:51:30 smirkin kernel:   +      30 0000000100000000 0000000000000000
Apr 18 23:51:30 smirkin kernel:   +      40 0000000000000000 0000000000000000
Apr 18 23:51:30 smirkin kernel:   +      50 0000000000000000 0000000000000000
Apr 18 23:51:30 smirkin kernel:   +      60 0000000000000000 00000000000002c0
Apr 18 23:51:30 smirkin kernel: machine check: LA: fffffc0000006000
Apr 18 23:51:30 smirkin kernel: CIA machine check NOT expected!!!
Apr 18 23:51:30 smirkin kernel: CIA machine check: vector=0x630 pc=0x120007138 code=0x86
Apr 18 23:51:30 smirkin kernel: machine check type: correctable ECC error (retryable)
Apr 18 23:51:30 smirkin kernel: pc = [<0000000120007138>]  ra = [<000000012001253c>]  ps = 0008    Not tainted
Apr 18 23:51:30 smirkin kernel: pc is at 0x120007138
Apr 18 23:51:30 smirkin kernel: ra is at 0x12001253c
Apr 18 23:51:30 smirkin kernel: v0 = 0000000120a51c90  t0 = 0000000000000000  t1 = 0000000000000001
Apr 18 23:51:30 smirkin kernel: t2 = 0000000120a530f0  t3 = 0000000120255638  t4 = 0000000000000000
Apr 18 23:51:30 smirkin kernel: t5 = 0000000120255620  t6 = 0000000000000001  t7 = 0000000000000020
Apr 18 23:51:30 smirkin kernel: a0 = 0000000000000000  a1 = 0000000000000000  a2 = 0000000000000008
Apr 18 23:51:30 smirkin kernel: a3 = 0000020000038010  a4 = 0000000000000000  a5 = 000000000000003e
Apr 18 23:51:30 smirkin kernel: t8 = 0000000000000001  t9 = 1999999999999999  t10= 0000000000000000
Apr 18 23:51:30 smirkin kernel: t11= 0000000000000001  pv = 0000000000000000  at = 0000000000000400
Apr 18 23:51:30 smirkin kernel: gp = 00000001200440f0  sp = fffffc005cf58000
Apr 18 23:51:30 smirkin kernel:   +       0 8000000000000068 0000003800000018
Apr 18 23:51:30 smirkin kernel:   +      10 0000000000000086 ffffff00025edddf
Apr 18 23:51:30 smirkin kernel:   +      20 0000000000005700 fffffff0c5ffffff
Apr 18 23:51:30 smirkin kernel:   +      30 0000000100000000 0000000000000000
Apr 18 23:51:30 smirkin kernel:   +      40 0000000000000000 0000000000000000
Apr 18 23:51:30 smirkin kernel:   +      50 0000000000000000 0000000000000000
Apr 18 23:51:30 smirkin kernel:   +      60 0000000000000000 00000000000002c0

  reply	other threads:[~2016-04-19 23:57 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-04-17 21:05 [BUG] machine check Oops on Alpha Bob Tracy
2016-04-18  1:32 ` Maciej W. Rozycki
2016-04-18  3:58   ` Bob Tracy
2016-04-18 12:31     ` Bob Tracy
2016-04-18 13:47       ` Maciej W. Rozycki
2016-04-19  2:52         ` Bob Tracy
2016-04-19 23:56           ` Bob Tracy [this message]
2016-04-20  0:46             ` Maciej W. Rozycki
2016-04-20  3:57               ` Bob Tracy

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