From: Wen Congyang <wency@cn.fujitsu.com>
To: Vasilis Liaskovitis <vasilis.liaskovitis@profitbricks.com>
Cc: x86@kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org, linux-acpi@vger.kernel.org,
linux-s390@vger.kernel.org, linux-sh@vger.kernel.org,
linux-ia64@vger.kernel.org, cmetcalf@tilera.com,
sparclinux@vger.kernel.org, rientjes@google.com,
liuj97@gmail.com, len.brown@intel.com, benh@kernel.crashing.org,
paulus@samba.org, cl@linux.com, minchan.kim@gmail.com,
akpm@linux-foundation.org, kosaki.motohiro@jp.fujitsu.com,
isimatu.yasuaki@jp.fujitsu.com
Subject: Re: [RFC v9 PATCH 00/21] memory-hotplug: hot-remove physical memory
Date: Thu, 27 Sep 2012 16:53:59 +0800 [thread overview]
Message-ID: <50641427.3040103@cn.fujitsu.com> (raw)
In-Reply-To: <20120926165820.GB7559@dhcp-192-168-178-175.profitbricks.localdomain>
At 09/27/2012 12:58 AM, Vasilis Liaskovitis Wrote:
> Testing 3.6.0-rc7 with this v9 patchset plus more recent fixes [1],[2],[3]
> Running in a guest (qemu+seabios from [4]).
> CONFIG_SLAB=y
> CONFIG_DEBUG_SLAB=y
>
> - succesfull hot-add and online
> - succesfull hot-remove with SCI (qemu) eject
> - attempt to hot-readd same memory
>
> When the pages are re-onlined on hot-readd, I get a bad_page state for many
> pages e.g.
I have reproduced this problem, and I investigate it now.
Thanks
Wen Congyang
>
> [ 59.611278] init_memory_mapping: [mem 0x80000000-0x9fffffff]
> [ 59.637836] Built 2 zonelists in Node order, mobility grouping on. Total pages: 547617
> [ 59.638739] Policy zone: Normal
> [ 59.650840] BUG: Bad page state in process bash pfn:9b6dc
> [ 59.651124] page:ffffea0002200020 count:0 mapcount:0 mapping: (null) index:0xfdfdfdfdfdfdfdfd
> [ 59.651494] page flags: 0x2fdfdfdfd5df9fd(locked|referenced|uptodate|dirty|lru|active|slab|owner_priv_1|private|private_2|writeback|head|tail|swapcache|reclaim|swapbacked|unevictable|uncached|compound_lock)
> [ 59.653604] Modules linked in: netconsole acpiphp pci_hotplug acpi_memhotplug loop kvm_amd kvm microcode tpm_tis tpm tpm_bios evdev psmouse serio_raw i2c_piix4 i2c_core parport_pc parport processor button thermal_sys ext3 jbd mbcache sg sr_mod cdrom ata_generic virtio_net ata_piix virtio_blk libata virtio_pci virtio_ring virtio scsi_mod
> [ 59.656998] Pid: 988, comm: bash Not tainted 3.6.0-rc7-guest #12
> [ 59.657172] Call Trace:
> [ 59.657275] [<ffffffff810e9b30>] ? bad_page+0xb0/0x100
> [ 59.657434] [<ffffffff810ea4c3>] ? free_pages_prepare+0xb3/0x100
> [ 59.657610] [<ffffffff810ea668>] ? free_hot_cold_page+0x48/0x1a0
> [ 59.657787] [<ffffffff8112cc08>] ? online_pages_range+0x68/0xa0
> [ 59.657961] [<ffffffff8112cba0>] ? __online_page_increment_counters+0x10/0x10
> [ 59.658162] [<ffffffff81045561>] ? walk_system_ram_range+0x101/0x110
> [ 59.658346] [<ffffffff814c4f95>] ? online_pages+0x1a5/0x2b0
> [ 59.658515] [<ffffffff8135663d>] ? __memory_block_change_state+0x20d/0x270
> [ 59.658710] [<ffffffff81356756>] ? store_mem_state+0xb6/0xf0
> [ 59.658878] [<ffffffff8119e482>] ? sysfs_write_file+0xd2/0x160
> [ 59.659052] [<ffffffff8113769a>] ? vfs_write+0xaa/0x160
> [ 59.659212] [<ffffffff81137977>] ? sys_write+0x47/0x90
> [ 59.659371] [<ffffffff814e2f25>] ? async_page_fault+0x25/0x30
> [ 59.659543] [<ffffffff814ea239>] ? system_call_fastpath+0x16/0x1b
> [ 59.659720] Disabling lock debugging due to kernel taint
>
> Patch 20/21 deals with a similar scenario, but only for __PG_HWPOISON flag.
> Did i miss any other patch for this?
>
> thanks,
>
> - Vasilis
>
> [1] https://lkml.org/lkml/2012/9/6/635
> [2] https://lkml.org/lkml/2012/9/11/542
> [3] https://lkml.org/lkml/2012/9/20/37
> [4] http://permalink.gmane.org/gmane.comp.emulators.kvm.devel/98691
>
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
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>
next prev parent reply other threads:[~2012-09-27 8:48 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-05 9:25 [RFC v9 PATCH 00/21] memory-hotplug: hot-remove physical memory wency
2012-09-05 9:25 ` [RFC v9 PATCH 01/21] memory-hotplug: rename remove_memory() to offline_memory()/offline_pages() wency
2012-09-28 2:22 ` Ni zhan Chen
2012-09-28 3:50 ` Yasuaki Ishimatsu
2012-09-28 22:15 ` KOSAKI Motohiro
2012-10-02 1:18 ` Yasuaki Ishimatsu
2012-10-02 17:29 ` KOSAKI Motohiro
2012-09-05 9:25 ` [RFC v9 PATCH 02/21] memory-hotplug: implement offline_memory() wency
2012-09-05 9:25 ` [RFC v9 PATCH 03/21] memory-hotplug: store the node id in acpi_memory_device wency
2012-09-28 3:21 ` Ni zhan Chen
2012-10-01 7:38 ` Yasuaki Ishimatsu
2012-09-05 9:25 ` [RFC v9 PATCH 04/21] memory-hotplug: offline and remove memory when removing the memory device wency
2012-09-28 4:48 ` Ni zhan Chen
2012-09-05 9:25 ` [RFC v9 PATCH 05/21] memory-hotplug: check whether memory is present or not wency
2012-09-11 2:15 ` Wen Congyang
2012-09-11 2:24 ` Yasuaki Ishimatsu
2012-09-11 2:46 ` Wen Congyang
2012-09-28 3:37 ` Ni zhan Chen
2012-09-05 9:25 ` [RFC v9 PATCH 06/21] memory-hotplug: export the function acpi_bus_remove() wency
2012-10-02 0:34 ` Ni zhan Chen
2012-10-02 17:28 ` KOSAKI Motohiro
2012-09-05 9:25 ` [RFC v9 PATCH 07/21] memory-hotplug: call acpi_bus_remove() to remove memory device wency
2012-09-05 9:25 ` [RFC v9 PATCH 08/21] memory-hotplug: remove /sys/firmware/memmap/X sysfs wency
2012-09-05 9:25 ` [RFC v9 PATCH 09/21] memory-hotplug: does not release memory region in PAGES_PER_SECTION chunks wency
2012-09-05 9:25 ` [RFC v9 PATCH 10/21] memory-hotplug: add memory_block_release wency
2012-09-05 9:25 ` [RFC v9 PATCH 11/21] memory-hotplug: remove_memory calls __remove_pages wency
2012-09-05 9:25 ` [RFC v9 PATCH 12/21] memory-hotplug: introduce new function arch_remove_memory() wency
2012-09-05 9:25 ` [RFC v9 PATCH 13/21] memory-hotplug: check page type in get_page_bootmem wency
2012-09-29 2:15 ` Ni zhan Chen
2012-10-01 3:03 ` Yasuaki Ishimatsu
2012-10-02 12:24 ` Ni zhan Chen
2012-09-05 9:25 ` [RFC v9 PATCH 14/21] memory-hotplug: move register_page_bootmem_info_node and put_page_bootmem for sparse-vmemmap wency
2012-09-05 9:25 ` [RFC v9 PATCH 15/21] memory-hotplug: implement register_page_bootmem_info_section of sparse-vmemmap wency
2012-09-05 9:25 ` [RFC v9 PATCH 16/21] memory-hotplug: free memmap " wency
2012-10-02 4:21 ` Ni zhan Chen
2012-10-04 6:26 ` Yasuaki Ishimatsu
2012-10-06 14:18 ` Ni zhan Chen
2012-09-05 9:25 ` [RFC v9 PATCH 17/21] memory_hotplug: clear zone when the memory is removed wency
2012-09-05 9:25 ` [RFC v9 PATCH 18/21] memory-hotplug: add node_device_release wency
2012-09-05 9:25 ` [RFC v9 PATCH 19/21] memory-hotplug: remove sysfs file of node wency
2012-09-05 9:25 ` [RFC v9 PATCH 20/21] memory-hotplug: clear hwpoisoned flag when onlining pages wency
2012-09-06 7:27 ` andywu106建国
2012-09-06 8:41 ` Wen Congyang
2012-09-05 9:25 ` [RFC v9 PATCH 21/21] memory-hotplug: auto offline page_cgroup when onlining memory block failed wency
2012-09-26 16:46 ` [RFC v9 PATCH 00/21] memory-hotplug: hot-remove physical memory Vasilis Liaskovitis
2012-09-27 0:59 ` Wen Congyang
2012-09-27 6:37 ` Wen Congyang
2012-09-27 10:35 ` Vasilis Liaskovitis
2012-09-28 1:41 ` Wen Congyang
2012-10-08 10:19 ` Wen Congyang
2012-10-09 6:16 ` Wen Congyang
2012-10-09 8:11 ` Wen Congyang
2012-09-26 16:58 ` Vasilis Liaskovitis
2012-09-27 1:03 ` Wen Congyang
2012-09-27 8:53 ` Wen Congyang [this message]
2012-09-27 10:06 ` Wen Congyang
2012-09-27 11:02 ` Vasilis Liaskovitis
2012-09-29 3:45 ` Ni zhan Chen
2012-09-29 8:19 ` Ni zhan Chen
2012-10-01 4:44 ` Yasuaki Ishimatsu
2012-10-01 23:45 ` Ni zhan Chen
2012-10-02 0:02 ` Yasuaki Ishimatsu
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