* Re: Boot hang with 5.4-rc1, bisected to c5665868183f [not found] <CAB9dFdtVzo2C_8h+Qe144mrhBRZp5TkdiudwXsfZo5fCAWWj_g@mail.gmail.com> @ 2019-10-03 9:13 ` Catalin Marinas 0 siblings, 0 replies; only message in thread From: Catalin Marinas @ 2019-10-03 9:13 UTC (permalink / raw) To: Marc Dionne; +Cc: Linux Kernel Mailing List, linux-mm On Wed, Oct 02, 2019 at 07:26:51PM -0300, Marc Dionne wrote: > 5.4-rc1 hangs early on boot for me; the stack trace that I could > manage to see on screen suggested something kmemleak related, and it > was fairly quick to bisect it down to commit c5665868183f ("mm: > kmemleak: use the memory pool for early allocations"). > > Several call stacks periodically go by on screen, an interesting one > is (manually transcribed): > > RIP: 0010:_raw_write_unlock_irqrestore+0x15/0x20 > find_and_remove_object+0x84/0x90 > delete_object_full+0x10/0x20 > __kmemleak_do_cleanup+0x2d/0x50 > kmemleak_do_cleanup+0x59/0x60 > process_one_work+0x1a4/0x3c0 > worker_thread+0x50/0x3c0 > ... > > Config is attached. Thanks for the report. This was also mentioned here: http://lkml.kernel.org/r/2ac37341-097e-17a2-fb6b-7912da9fa38e@ozlabs.ru I'll have a look. It seems to only happen on the kmemleak disabling path (I managed to reproduce it as well). -- Catalin ^ permalink raw reply [flat|nested] only message in thread
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2019-10-03 9:13 ` Boot hang with 5.4-rc1, bisected to c5665868183f Catalin Marinas
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