From: kbuild test robot <lkp@intel.com>
To: kbuild-all@lists.01.org
Subject: Re: [RFC PATCH V2 10/10] x86/Hyper-V: Workaround Hyper-V unballoon msg bug
Date: Thu, 09 Jan 2020 06:23:11 +0800 [thread overview]
Message-ID: <202001090612.M2ynTQuq%lkp@intel.com> (raw)
In-Reply-To: <20200107130950.2983-11-Tianyu.Lan@microsoft.com>
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Hi,
[FYI, it's a private test report for your RFC patch.]
[auto build test ERROR on linus/master]
[also build test ERROR on v5.5-rc5 next-20200106]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
url: https://github.com/0day-ci/linux/commits/lantianyu1986-gmail-com/x86-Hyper-V-Add-Dynamic-memory-hot-remove-function/20200108-055844
base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git ae6088216ce4b99b3a4aaaccd2eb2dd40d473d42
config: i386-allyesconfig (attached as .config)
compiler: gcc-7 (Debian 7.5.0-3) 7.5.0
reproduce:
# save the attached .config to linux build tree
make ARCH=i386
If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
drivers/hv/hv_balloon.c: In function 'hot_remove_req':
drivers/hv/hv_balloon.c:1481:3: error: implicit declaration of function 'hv_mem_hot_remove'; did you mean 'device_link_remove'? [-Werror=implicit-function-declaration]
hv_mem_hot_remove(numa_node, page_count);
^~~~~~~~~~~~~~~~~
device_link_remove
drivers/hv/hv_balloon.c: In function 'balloon_down':
>> drivers/hv/hv_balloon.c:1842:5: error: implicit declaration of function 'process_hot_add'; did you mean '__check_hot_add'? [-Werror=implicit-function-declaration]
process_hot_add(range_array[i].finfo.start_page,
^~~~~~~~~~~~~~~
__check_hot_add
cc1: some warnings being treated as errors
vim +1842 drivers/hv/hv_balloon.c
1821
1822 static void balloon_down(union dm_msg_info *msg_info)
1823 {
1824 struct dm_unballoon_request *req = msg_info->unballoon_state.request;
1825 union dm_mem_page_range *range_array = req->range_array;
1826 struct hv_dynmem_device *dm = &dm_device;
1827 unsigned int prev_pages_ballooned = dm->num_pages_ballooned;
1828 int range_count = req->range_count;
1829 struct dm_unballoon_response resp;
1830 int i;
1831
1832 for (i = 0; i < range_count; i++) {
1833 /*
1834 * Hyper-V has a bug that send unballoon msg instead
1835 * of hot add msg even if there is no balloon msg sent
1836 * before. Treat all unballoon msgs as hot add msgs
1837 * if hot add capability is enabled.
1838 */
1839 if (IS_ENABLED(CONFIG_MEMORY_HOTPLUG) && do_hot_add) {
1840 dm->host_specified_ha_region = false;
1841 dm->num_pages_added +=
> 1842 process_hot_add(range_array[i].finfo.start_page,
1843 range_array[i].finfo.page_cnt, 0, 0);
1844 } else {
1845 free_balloon_pages(dm, &range_array[i]);
1846 complete(&dm_device.config_event);
1847 }
1848 }
1849
1850 if (!do_hot_add)
1851 pr_debug("Freed %u ballooned pages.\n",
1852 prev_pages_ballooned - dm->num_pages_ballooned);
1853
1854 if (req->more_pages == 1)
1855 return;
1856
1857 memset(&resp, 0, sizeof(struct dm_unballoon_response));
1858 resp.hdr.type = DM_UNBALLOON_RESPONSE;
1859 resp.hdr.trans_id = atomic_inc_return(&trans_id);
1860 resp.hdr.size = sizeof(struct dm_unballoon_response);
1861
1862 vmbus_sendpacket(dm_device.dev->channel, &resp,
1863 sizeof(struct dm_unballoon_response),
1864 (unsigned long)NULL,
1865 VM_PKT_DATA_INBAND, 0);
1866
1867 dm->state = DM_INITIALIZED;
1868 }
1869
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org Intel Corporation
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prev parent reply other threads:[~2020-01-08 22:23 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-07 13:09 [RFC PATCH V2 00/10] x86/Hyper-V: Add Dynamic memory hot-remove function lantianyu1986
2020-01-07 13:09 ` [RFC PATCH V2 1/10] mm/resource: Move child to new resource when release mem region lantianyu1986
2020-01-20 18:34 ` Michael Kelley
2020-01-20 19:20 ` Michael Kelley
2020-01-07 13:09 ` [RFC PATCH V2 2/10] mm: expose is_mem_section_removable() symbol lantianyu1986
2020-01-07 13:36 ` Michal Hocko
2020-01-10 13:41 ` David Hildenbrand
2020-01-13 14:49 ` [EXTERNAL] " Tianyu Lan
2020-01-13 15:01 ` David Hildenbrand
2020-01-14 9:50 ` Michal Hocko
2020-01-17 16:35 ` Tianyu Lan
2020-01-20 14:14 ` Michal Hocko
2020-01-07 13:09 ` [RFC PATCH V2 3/10] x86/Hyper-V/Balloon: Replace hot-add and balloon up works with a common work lantianyu1986
2020-01-20 19:12 ` Michael Kelley
2020-01-07 13:09 ` [RFC PATCH V2 4/10] x86/Hyper-V/Balloon: Convert spin lock ha_lock to mutex lantianyu1986
2020-01-07 13:09 ` [RFC PATCH V2 5/10] x86/Hyper-V/Balloon: Avoid releasing ha_lock when traverse ha_region_list lantianyu1986
2020-01-07 13:09 ` [RFC PATCH V2 6/10] x86/Hyper-V/Balloon: Enable mem hot-remove capability lantianyu1986
2020-01-07 13:09 ` [RFC PATCH V2 7/10] x86/Hyper-V/Balloon: Handle mem hot-remove request lantianyu1986
2020-01-08 9:54 ` kbuild test robot
2020-01-08 12:03 ` kbuild test robot
2020-01-07 13:09 ` [RFC PATCH V2 8/10] x86/Hyper-V/Balloon: Handle request with non-aligned page number lantianyu1986
2020-01-07 13:09 ` [RFC PATCH V2 9/10] x86/Hyper-V/Balloon: Hot add mem in the gaps of hot add region lantianyu1986
2020-01-07 13:09 ` [RFC PATCH V2 10/10] x86/Hyper-V: Workaround Hyper-V unballoon msg bug lantianyu1986
2020-01-08 22:23 ` kbuild test robot [this message]
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