From: Eric Dumazet <eric.dumazet@gmail.com>
To: Ian Campbell <Ian.Campbell@citrix.com>
Cc: "Wei Liu (Intern)" <wei.liu2@citrix.com>,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
"xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>,
"konrad.wilk@oracle.com" <konrad.wilk@oracle.com>
Subject: Re: [RFC PATCH V4 02/13] netback: add module unload function.
Date: Thu, 02 Feb 2012 21:37:37 +0100 [thread overview]
Message-ID: <1328215057.2480.20.camel@edumazet-laptop> (raw)
In-Reply-To: <1328214866.2480.18.camel@edumazet-laptop>
Le jeudi 02 février 2012 à 21:34 +0100, Eric Dumazet a écrit :
> That sounds a right fix.
>
> Why do think its not reasonable that I ask a bug fix ?
>
> Next time, dont bother send patches for review if you dont want
> reviewers.
FYI, here the trace you can get right now with this bug :
[ 1180.114682] WARNING: at arch/x86/kernel/smp.c:120 native_smp_send_reschedule+0x5b/0x60()
[ 1180.114685] Hardware name: ProLiant BL460c G6
[ 1180.114686] Modules linked in: ipmi_devintf nfsd exportfs ipmi_si hpilo bnx2x crc32c libcrc32c mdio [last unloaded: scsi_wait_scan]
[ 1180.114697] Pid: 7, comm: migration/1 Not tainted 3.3.0-rc2+ #609
[ 1180.114699] Call Trace:
[ 1180.114701] <IRQ> [<ffffffff81037adf>] warn_slowpath_common+0x7f/0xc0
[ 1180.114708] [<ffffffff81037b3a>] warn_slowpath_null+0x1a/0x20
[ 1180.114711] [<ffffffff8101ecfb>] native_smp_send_reschedule+0x5b/0x60
[ 1180.114715] [<ffffffff810744ec>] trigger_load_balance+0x28c/0x370
[ 1180.114720] [<ffffffff8106be14>] scheduler_tick+0x114/0x160
[ 1180.114724] [<ffffffff8104956e>] update_process_times+0x6e/0x90
[ 1180.114729] [<ffffffff8108c614>] tick_sched_timer+0x64/0xc0
[ 1180.114733] [<ffffffff8105fe54>] __run_hrtimer+0x84/0x1f0
[ 1180.114736] [<ffffffff8108c5b0>] ? tick_nohz_handler+0xf0/0xf0
[ 1180.114739] [<ffffffff8103f271>] ? __do_softirq+0x101/0x240
[ 1180.114742] [<ffffffff81060783>] hrtimer_interrupt+0xf3/0x220
[ 1180.114747] [<ffffffff810a90b0>] ? queue_stop_cpus_work+0x100/0x100
[ 1180.114751] [<ffffffff8171ee09>] smp_apic_timer_interrupt+0x69/0x99
[ 1180.114754] [<ffffffff8171dd4b>] apic_timer_interrupt+0x6b/0x70
[ 1180.114756] <EOI> [<ffffffff810a9143>] ? stop_machine_cpu_stop+0x93/0xc0
[ 1180.114761] [<ffffffff810a8da7>] cpu_stopper_thread+0xd7/0x1a0
[ 1180.114766] [<ffffffff81713dc7>] ? __schedule+0x3a7/0x7e0
[ 1180.114768] [<ffffffff81064058>] ? __wake_up_common+0x58/0x90
[ 1180.114771] [<ffffffff810a8cd0>] ? cpu_stop_signal_done+0x40/0x40
[ 1180.114773] [<ffffffff8105b5c3>] kthread+0x93/0xa0
[ 1180.114776] [<ffffffff8171e594>] kernel_thread_helper+0x4/0x10
[ 1180.114779] [<ffffffff8105b530>] ? kthread_freezable_should_stop+0x80/0x80
[ 1180.114781] [<ffffffff8171e590>] ? gs_change+0xb/0xb
next prev parent reply other threads:[~2012-02-02 20:37 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-02 16:49 [RFC PATCH V4] Xen netback / netfront improvement Wei Liu
2012-02-02 16:49 ` [RFC PATCH V4 01/13] netback: page pool version 1 Wei Liu
2012-02-02 17:26 ` Eric Dumazet
2012-02-17 19:19 ` Konrad Rzeszutek Wilk
2012-02-20 16:26 ` Wei Liu
2012-02-02 16:49 ` [RFC PATCH V4 02/13] netback: add module unload function Wei Liu
2012-02-02 17:08 ` Eric Dumazet
2012-02-02 17:28 ` Wei Liu
2012-02-02 17:48 ` Eric Dumazet
2012-02-02 19:59 ` Ian Campbell
2012-02-02 20:34 ` Eric Dumazet
2012-02-02 20:37 ` Eric Dumazet [this message]
2012-02-02 20:50 ` Ian Campbell
2012-02-02 22:52 ` Paul Gortmaker
2012-02-03 6:38 ` Ian Campbell
2012-02-03 7:25 ` Eric Dumazet
2012-02-03 8:02 ` Ian Campbell
2012-02-03 11:27 ` Wei Liu
2012-02-02 16:49 ` [RFC PATCH V4 03/13] netback: add module get/put operations along with vif connect/disconnect Wei Liu
2012-02-02 16:49 ` [RFC PATCH V4 04/13] netback: switch to NAPI + kthread model Wei Liu
2012-02-02 16:49 ` [RFC PATCH V4 05/13] netback: switch to per-cpu scratch space Wei Liu
2012-02-02 16:49 ` [RFC PATCH V4 06/13] netback: melt xen_netbk into xenvif Wei Liu
2012-02-02 16:49 ` [RFC PATCH V4 07/13] netback: alter internal function/structure names Wei Liu
2012-02-02 16:49 ` [RFC PATCH V4 08/13] xenbus_client: extend interface to support mapping / unmapping of multi page ring Wei Liu
2012-02-03 16:55 ` Konrad Rzeszutek Wilk
2012-02-03 17:20 ` Wei Liu
2012-02-03 17:35 ` Konrad Rzeszutek Wilk
2012-02-06 17:21 ` Konrad Rzeszutek Wilk
2012-02-06 17:30 ` Wei Liu
2012-02-02 16:49 ` [RFC PATCH V4 09/13] Bundle fix for xen backends and frontends Wei Liu
2012-02-03 2:34 ` Konrad Rzeszutek Wilk
2012-02-02 16:49 ` [RFC PATCH V4 10/13] netback: multi page ring support Wei Liu
2012-02-02 16:49 ` [RFC PATCH V4 11/13] netback: split event channels support Wei Liu
2012-02-02 16:49 ` [RFC PATCH V4 12/13] netfront: multi page ring support Wei Liu
2012-02-15 22:42 ` Konrad Rzeszutek Wilk
2012-02-15 22:52 ` David Miller
2012-02-15 23:53 ` Konrad Rzeszutek Wilk
2012-02-16 10:02 ` Wei Liu
2012-02-16 10:16 ` Wei Liu
2012-02-17 15:10 ` Konrad Rzeszutek Wilk
2012-02-16 22:57 ` Konrad Rzeszutek Wilk
2012-02-02 16:49 ` [RFC PATCH V4 13/13] netfront: split event channels support Wei Liu
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