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[2003:cb:c748:ba00:1c00:48ea:7b5a:c12b]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4223da03f46sm26935365e9.23.2024.06.11.03.32.45 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 11 Jun 2024 03:32:46 -0700 (PDT) Message-ID: Date: Tue, 11 Jun 2024 12:32:44 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: LTP: fork13: kernel panic on rk3399-rock-pi-4 running mainline 6.10.rc3 To: Naresh Kamboju , open list , linux-mm , lkft-triage@lists.linaro.org, Linux Regressions Cc: Andrew Morton , willy@infradead.org, Kefeng Wang , Barry Song , Ryan Roberts , Baolin Wang , "Russell King (Oracle)" , Dan Carpenter , Arnd Bergmann , Anders Roxell References: From: David Hildenbrand Autocrypt: addr=david@redhat.com; keydata= xsFNBFXLn5EBEAC+zYvAFJxCBY9Tr1xZgcESmxVNI/0ffzE/ZQOiHJl6mGkmA1R7/uUpiCjJ dBrn+lhhOYjjNefFQou6478faXE6o2AhmebqT4KiQoUQFV4R7y1KMEKoSyy8hQaK1umALTdL QZLQMzNE74ap+GDK0wnacPQFpcG1AE9RMq3aeErY5tujekBS32jfC/7AnH7I0v1v1TbbK3Gp XNeiN4QroO+5qaSr0ID2sz5jtBLRb15RMre27E1ImpaIv2Jw8NJgW0k/D1RyKCwaTsgRdwuK Kx/Y91XuSBdz0uOyU/S8kM1+ag0wvsGlpBVxRR/xw/E8M7TEwuCZQArqqTCmkG6HGcXFT0V9 PXFNNgV5jXMQRwU0O/ztJIQqsE5LsUomE//bLwzj9IVsaQpKDqW6TAPjcdBDPLHvriq7kGjt WhVhdl0qEYB8lkBEU7V2Yb+SYhmhpDrti9Fq1EsmhiHSkxJcGREoMK/63r9WLZYI3+4W2rAc UucZa4OT27U5ZISjNg3Ev0rxU5UH2/pT4wJCfxwocmqaRr6UYmrtZmND89X0KigoFD/XSeVv jwBRNjPAubK9/k5NoRrYqztM9W6sJqrH8+UWZ1Idd/DdmogJh0gNC0+N42Za9yBRURfIdKSb B3JfpUqcWwE7vUaYrHG1nw54pLUoPG6sAA7Mehl3nd4pZUALHwARAQABzSREYXZpZCBIaWxk ZW5icmFuZCA8ZGF2aWRAcmVkaGF0LmNvbT7CwZgEEwEIAEICGwMGCwkIBwMCBhUIAgkKCwQW AgMBAh4BAheAAhkBFiEEG9nKrXNcTDpGDfzKTd4Q9wD/g1oFAl8Ox4kFCRKpKXgACgkQTd4Q 9wD/g1oHcA//a6Tj7SBNjFNM1iNhWUo1lxAja0lpSodSnB2g4FCZ4R61SBR4l/psBL73xktp rDHrx4aSpwkRP6Epu6mLvhlfjmkRG4OynJ5HG1gfv7RJJfnUdUM1z5kdS8JBrOhMJS2c/gPf wv1TGRq2XdMPnfY2o0CxRqpcLkx4vBODvJGl2mQyJF/gPepdDfcT8/PY9BJ7FL6Hrq1gnAo4 3Iv9qV0JiT2wmZciNyYQhmA1V6dyTRiQ4YAc31zOo2IM+xisPzeSHgw3ONY/XhYvfZ9r7W1l pNQdc2G+o4Di9NPFHQQhDw3YTRR1opJaTlRDzxYxzU6ZnUUBghxt9cwUWTpfCktkMZiPSDGd KgQBjnweV2jw9UOTxjb4LXqDjmSNkjDdQUOU69jGMUXgihvo4zhYcMX8F5gWdRtMR7DzW/YE BgVcyxNkMIXoY1aYj6npHYiNQesQlqjU6azjbH70/SXKM5tNRplgW8TNprMDuntdvV9wNkFs 9TyM02V5aWxFfI42+aivc4KEw69SE9KXwC7FSf5wXzuTot97N9Phj/Z3+jx443jo2NR34XgF 89cct7wJMjOF7bBefo0fPPZQuIma0Zym71cP61OP/i11ahNye6HGKfxGCOcs5wW9kRQEk8P9 M/k2wt3mt/fCQnuP/mWutNPt95w9wSsUyATLmtNrwccz63XOwU0EVcufkQEQAOfX3n0g0fZz Bgm/S2zF/kxQKCEKP8ID+Vz8sy2GpDvveBq4H2Y34XWsT1zLJdvqPI4af4ZSMxuerWjXbVWb T6d4odQIG0fKx4F8NccDqbgHeZRNajXeeJ3R7gAzvWvQNLz4piHrO/B4tf8svmRBL0ZB5P5A 2uhdwLU3NZuK22zpNn4is87BPWF8HhY0L5fafgDMOqnf4guJVJPYNPhUFzXUbPqOKOkL8ojk CXxkOFHAbjstSK5Ca3fKquY3rdX3DNo+EL7FvAiw1mUtS+5GeYE+RMnDCsVFm/C7kY8c2d0G NWkB9pJM5+mnIoFNxy7YBcldYATVeOHoY4LyaUWNnAvFYWp08dHWfZo9WCiJMuTfgtH9tc75 7QanMVdPt6fDK8UUXIBLQ2TWr/sQKE9xtFuEmoQGlE1l6bGaDnnMLcYu+Asp3kDT0w4zYGsx 5r6XQVRH4+5N6eHZiaeYtFOujp5n+pjBaQK7wUUjDilPQ5QMzIuCL4YjVoylWiBNknvQWBXS lQCWmavOT9sttGQXdPCC5ynI+1ymZC1ORZKANLnRAb0NH/UCzcsstw2TAkFnMEbo9Zu9w7Kv AxBQXWeXhJI9XQssfrf4Gusdqx8nPEpfOqCtbbwJMATbHyqLt7/oz/5deGuwxgb65pWIzufa N7eop7uh+6bezi+rugUI+w6DABEBAAHCwXwEGAEIACYCGwwWIQQb2cqtc1xMOkYN/MpN3hD3 AP+DWgUCXw7HsgUJEqkpoQAKCRBN3hD3AP+DWrrpD/4qS3dyVRxDcDHIlmguXjC1Q5tZTwNB boaBTPHSy/Nksu0eY7x6HfQJ3xajVH32Ms6t1trDQmPx2iP5+7iDsb7OKAb5eOS8h+BEBDeq 3ecsQDv0fFJOA9ag5O3LLNk+3x3q7e0uo06XMaY7UHS341ozXUUI7wC7iKfoUTv03iO9El5f XpNMx/YrIMduZ2+nd9Di7o5+KIwlb2mAB9sTNHdMrXesX8eBL6T9b+MZJk+mZuPxKNVfEQMQ a5SxUEADIPQTPNvBewdeI80yeOCrN+Zzwy/Mrx9EPeu59Y5vSJOx/z6OUImD/GhX7Xvkt3kq Er5KTrJz3++B6SH9pum9PuoE/k+nntJkNMmQpR4MCBaV/J9gIOPGodDKnjdng+mXliF3Ptu6 3oxc2RCyGzTlxyMwuc2U5Q7KtUNTdDe8T0uE+9b8BLMVQDDfJjqY0VVqSUwImzTDLX9S4g/8 kC4HRcclk8hpyhY2jKGluZO0awwTIMgVEzmTyBphDg/Gx7dZU1Xf8HFuE+UZ5UDHDTnwgv7E th6RC9+WrhDNspZ9fJjKWRbveQgUFCpe1sa77LAw+XFrKmBHXp9ZVIe90RMe2tRL06BGiRZr jPrnvUsUUsjRoRNJjKKA/REq+sAnhkNPPZ/NNMjaZ5b8Tovi8C0tmxiCHaQYqj7G2rgnT0kt WNyWQQ== Organization: Red Hat In-Reply-To: X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: BC8101C0017 X-Rspam-User: X-Rspamd-Server: rspam12 X-Stat-Signature: gcgn3mh5jn9bem7fasg9bjxfsg3fo5a8 X-HE-Tag: 1718101970-344112 X-HE-Meta: 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 haX2FNRg 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 11.06.24 12:14, Naresh Kamboju wrote: > The kernel panic was noticed while running LTP syscalls fork13 (long running) on > the mainline master 6.10.rc3 kernel on arm64 rk3399-rock-pi-4 device. > > Please find detailed logs in the links, > > As you know fork13 is a stress test case trying to generate a maximum number > of PID's in a 100,000 loop. > > This device is running via NFS mounted filesystem. > > I have tried to reproduce this problem in a loop but failed to reproduce the > crash. > > > Crash flow: > ------ > fork13 run started > BUG: Bad page map in process fork13 > BUG: Bad rss-counter state mm: > Unable to handle kernel paging request at virtual address > Internal error: Oops: 0000000096000046 > run for 800 secs ( 13 minutes) and more. > fork14 run started and completed > > fpathconf01 run started and completed > sugov: > > Unable to handle kernel NULL pointer dereference at virtual address > > Insufficient stack space to handle exception! > end Kernel panic - not syncing: kernel stack overflow > > I have tried to decode stack dump by not being useful [1]. > [1] https://people.linaro.org/~naresh.kamboju/output-rk3399.txt > > Test log : > -------- > tst_test.c:1733: TINFO: LTP version: 20240524 > tst_test.c:1617: TINFO: Timeout per run is 0h 15m 00s > [ 904.280569] BUG: Bad page map in process fork13 pte:2000000019ffc3 > pmd:80000000df55003 > [ 904.281397] page: refcount:1 mapcount:-1 mapping:0000000000000000 > index:0x0 pfn:0x19f Mapcount underflow on a small folio (head: not printed). [...] > [ 904.294564] BUG: Bad page map in process fork13 pte:200000002e4fc3 > pmd:80000000df55003 > [ 904.295275] page: refcount:2 mapcount:-1 mapping:000000007885152f > index:0x6 pfn:0x2e4 Another mapcount underflow on a small folio (head: not printed). > [ 904.309309] BUG: Bad page map in process fork13 pte:20000000cc6fc3 > pmd:80000000df55003 > [ 904.310031] page: refcount:1 mapcount:-1 mapping:0000000000000000 > index:0x6 pfn:0xcc6 > [ 904.310728] head: order:3 mapcount:-1 entire_mapcount:0 > nr_pages_mapped:8388607 pincount:0 Mapcount underflow on a large folio. ... > [ 904.326666] BUG: Bad page map in process fork13 pte:20000000268fc3 > pmd:80000000df55003 > [ 904.327390] page: refcount:1 mapcount:-1 mapping:00000000f0624181 > index:0x1b pfn:0x268 Another mapcount underflow on a small folio (head: not printed). > [ 904.328094] memcg:ffff0000016b4000 > [ 904.328401] aops:nfs_file_aops ino:8526e6 dentry > name:"libgpg-error.so.0.36.0" > [ 904.329051] flags: > 0x3fffe000000002c(referenced|uptodate|lru|node=0|zone=0|lastcpupid=0x1ffff) > [ 904.329878] raw: 03fffe000000002c fffffdffc0009a48 fffffdffc022f3c8 > ffff00000688bd60 > [ 904.330561] raw: 000000000000001b 0000000000000000 00000001fffffffe > ffff0000016b4000 > [ 904.331240] page dumped because: bad pte > [ 904.331590] addr:0000aaaad9afe000 vm_flags:00000075 > anon_vma:0000000000000000 mapping:ffff0000300d4188 index:2e > [ 904.332476] file:fork13 fault:filemap_fault mmap:nfs_file_mmap > read_folio:nfs_read_folio > [ 904.333245] CPU: 5 PID: 22685 Comm: fork13 Tainted: G B Are these maybe side-effects due to https://lkml.kernel.org/r/20240607103241.1298388-1-wangkefeng.wang@huawei.com How reproducible is this? -- Cheers, David / dhildenb