linux-kernel - Re: frequent lockups in 3.18rc4

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Message-ID: <20141217185755.GA22839@redhat.com>
Date:	Wed, 17 Dec 2014 13:57:55 -0500
From:	Dave Jones <davej@...hat.com>
To:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Chris Mason <clm@...com>,
	Mike Galbraith <umgwanakikbuti@...il.com>,
	Ingo Molnar <mingo@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Dâniel Fraga <fragabr@...il.com>,
	Sasha Levin <sasha.levin@...cle.com>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Suresh Siddha <sbsiddha@...il.com>,
	Oleg Nesterov <oleg@...hat.com>,
	Peter Anvin <hpa@...ux.intel.com>
Subject: Re: frequent lockups in 3.18rc4

On Wed, Dec 17, 2014 at 01:22:41PM -0500, Dave Jones wrote:
 
 > I'm going to try your two patches on top of .18, with the same kernel
 > config, and see where that takes us.
 > Hopefully to happier places.

Not so much.  Died very quickly.

[  270.822490] BUG: unable to handle kernel paging request at 000000000249db90
[  270.822573] IP: [<000000336ef04084>] 0x336ef04084
[  270.822602] PGD 20e5ee067 PUD 20e5ef067 PMD 23126d067 PTE 94ec80
[  270.822633] Oops: 0006 [#1] SMP 
[  270.822652] Modules linked in: hidp llc2 af_key fuse bnep can_raw scsi_transport_iscsi nfnetlink can_bcm rfcomm nfc caif_socket caif af_802154 ieee802154 phonet af_rxrpc bluetooth can pppoe pppox ppp_generic slhc irda crc_ccitt rds rose sctp libcrc32c x25 atm netrom appletalk ipx p8023 psnap p8022 llc ax25 cfg80211 rfkill snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_seq snd_seq_device snd_pcm coretemp hwmon x86_pkg_temp_thermal kvm_intel snd_timer kvm snd crct10dif_pclmul crc32c_intel ghash_clmulni_intel microcode pcspkr serio_raw usb_debug shpchp e1000e soundcore ptp pps_core nfsd auth_rpcgss oid_registry nfs_acl lockd grace sunrpc
[  270.822979] CPU: 3 PID: 9856 Comm: trinity-c93 Not tainted 3.18.0+ #105
[  270.823042] task: ffff8801a45416d0 ti: ffff88020e72c000 task.ti: ffff88020e72c000
[  270.823067] RIP: 0033:[<000000336ef04084>]  [<000000336ef04084>] 0x336ef04084
[  270.823096] RSP: 002b:00007fff9c3304c0  EFLAGS: 00010202
[  270.823117] RAX: 000000336f1b68c0 RBX: 000000000249db90 RCX: 0000000000000000
[  270.823142] RDX: fffffffffffffffe RSI: 00000000fbad8000 RDI: 00007fff9c3304c0
[  270.823168] RBP: 000000000249db90 R08: 0000000000000000 R09: 0000000000002680
[  270.823192] R10: 000000000000001f R11: 0000000000000246 R12: ffffffffffffffff
[  270.823217] R13: 000000000041edb9 R14: 00007fff9c3305f8 R15: 0000000000000001
[  270.823241] FS:  00007f5fd4acf740(0000) GS:ffff880245400000(0000) knlGS:0000000000000000
[  270.823268] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  270.823288] CR2: 00007f5fd2640113 CR3: 000000020e5ed000 CR4: 00000000001407e0
[  270.823312] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  270.823336] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  270.823360] 
[  270.823370] RIP  [<000000336ef04084>] 0x336ef04084
[  270.823392]  RSP <00007fff9c3304c0>
[  270.824407] CR2: 000000000249db90
[  270.825443] ---[ end trace d6eb8dccb8df6213 ]---
[  270.826448] Kernel panic - not syncing: Fatal exception

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