From: Heiko Carstens <hca@linux.ibm.com>
To: Heiko Carstens <hca@linux.ibm.com>
Cc: Liam Howlett <liam.howlett@oracle.com>,
Janosch Frank <frankja@linux.ibm.com>,
Claudio Imbrenda <imbrenda@linux.ibm.com>,
Andrew Morton <akpm@linux-foundation.org>,
Guenter Roeck <linux@roeck-us.net>,
"maple-tree@lists.infradead.org" <maple-tree@lists.infradead.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Yu Zhao <yuzhao@google.com>, Juergen Gross <jgross@suse.com>,
Vasily Gorbik <gor@linux.ibm.com>,
Alexander Gordeev <agordeev@linux.ibm.com>,
Christian Borntraeger <borntraeger@linux.ibm.com>,
Sven Schnelle <svens@linux.ibm.com>,
Andreas Krebbel <krebbel@linux.ibm.com>,
Ilya Leoshkevich <iii@linux.ibm.com>
Subject: Re: [PATCH v8 23/70] mm/mmap: change do_brk_flags() to expand existing VMA and add do_brk_munmap()
Date: Tue, 3 May 2022 21:48:55 +0200 [thread overview]
Message-ID: <YnGHJ7oroqF+v1u+@osiris> (raw)
In-Reply-To: <YnAn3FI9aVCi/xKd@osiris>
On Mon, May 02, 2022 at 08:50:04PM +0200, Heiko Carstens wrote:
> On Mon, May 02, 2022 at 01:31:00PM +0000, Liam Howlett wrote:
> > * Heiko Carstens <hca@linux.ibm.com> [220502 06:18]:
> > > On Sun, May 01, 2022 at 05:24:12PM -0700, Andrew Morton wrote:
> > > > (cc S390 maintainers)
> > > > (cc stable & Greg)
...
> > > > > booting. The last thing I see is:
> > > > >
> > > > > "[ 4.668916] Spectre V2 mitigation: execute trampolines"
> > > > >
> > > > > I've bisected back to commit e553f62f10d9 (mm, page_alloc: fix
> > > > > build_zonerefs_node())
> > > > >
> > > > > With the this commit, I am unable to boot one out of three times. When
> > > > > using the previous commit I was not able to get it to hang after trying
> > > > > 10+ times. This is a qemu s390 install with KASAN on and I see no error
> > > > > messages. I think it's likely it is this patch, but no guaranteed.
...
> > > Liam, could you share your kernel config?
> >
> > Sure thing. See attached.
>
> So, I can reproduce the hanging system now. However this looks like a
> qemu problem on s390, since I can reproduce this only with Qemu+TCG.
> Qemu with kvm works without any problems (same if I use z/VM as
> hypervisor).
>
> Janosch, Claudio, can you have a look at this please?
So, at least for me this problem also exists with plain v5.17.
Switching off KASAN, or alternatively switching to KASAN_INLINE
"fixes" it for me with Qemu+TCG.
Liam, could you please also try to disable KASAN in your config? With
that I think we can be almost sure this could be some bug in Qemu.
next prev parent reply other threads:[~2022-05-03 19:49 UTC|newest]
Thread overview: 114+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-26 15:06 [PATCH v8 00/70] Introducing the Maple Tree Liam Howlett
2022-04-26 15:06 ` [PATCH v8 01/70] radix tree test suite: add pr_err define Liam Howlett
2022-04-26 15:06 ` [PATCH v8 02/70] radix tree test suite: add kmem_cache_set_non_kernel() Liam Howlett
2022-04-26 15:06 ` [PATCH v8 05/70] radix tree test suite: add lockdep_is_held to header Liam Howlett
2022-04-26 15:06 ` [PATCH v8 03/70] radix tree test suite: add allocation counts and size to kmem_cache Liam Howlett
2022-04-26 15:06 ` [PATCH v8 04/70] radix tree test suite: add support for slab bulk APIs Liam Howlett
2022-04-26 15:06 ` [PATCH v8 06/70] mips: rename mt_init to mips_mt_init Liam Howlett
2022-04-26 15:06 ` [PATCH v8 07/70] Maple Tree: add new data structure Liam Howlett
2022-04-27 15:45 ` Liam Howlett
2022-04-26 15:06 ` [PATCH v8 08/70] lib/test_maple_tree: add testing for maple tree Liam Howlett
2022-04-26 15:06 ` [PATCH v8 09/70] mm: start tracking VMAs with " Liam Howlett
2022-04-26 15:06 ` [PATCH v8 10/70] mm: add VMA iterator Liam Howlett
2022-04-26 15:06 ` [PATCH v8 12/70] mm/mmap: use the maple tree in find_vma() instead of the rbtree Liam Howlett
2022-04-26 15:06 ` [PATCH v8 11/70] mmap: use the VMA iterator in count_vma_pages_range() Liam Howlett
2022-04-26 15:06 ` [PATCH v8 13/70] mm/mmap: use the maple tree for find_vma_prev() instead of the rbtree Liam Howlett
2022-04-26 15:06 ` [PATCH v8 14/70] mm/mmap: use maple tree for unmapped_area{_topdown} Liam Howlett
2022-04-26 15:06 ` [PATCH v8 15/70] kernel/fork: use maple tree for dup_mmap() during forking Liam Howlett
2022-04-26 15:06 ` [PATCH v8 17/70] proc: remove VMA rbtree use from nommu Liam Howlett
2022-04-26 15:06 ` [PATCH v8 16/70] damon: Convert __damon_va_three_regions to use the VMA iterator Liam Howlett
2022-05-03 23:40 ` SeongJae Park
2022-04-26 15:06 ` [PATCH v8 18/70] mm: remove rb tree Liam Howlett
2022-04-26 15:06 ` [PATCH v8 21/70] mm: optimize find_exact_vma() to use vma_lookup() Liam Howlett
2022-04-26 15:06 ` [PATCH v8 20/70] xen: use vma_lookup() in privcmd_ioctl_mmap() Liam Howlett
2022-04-26 15:06 ` [PATCH v8 19/70] mmap: change zeroing of maple tree in __vma_adjust() Liam Howlett
2022-04-26 15:06 ` [PATCH v8 22/70] mm/khugepaged: optimize collapse_pte_mapped_thp() by using vma_lookup() Liam Howlett
2022-04-26 15:06 ` [PATCH v8 23/70] mm/mmap: change do_brk_flags() to expand existing VMA and add do_brk_munmap() Liam Howlett
2022-04-28 16:09 ` Guenter Roeck
2022-04-28 16:35 ` Liam Howlett
2022-04-28 17:13 ` Guenter Roeck
2022-04-28 20:19 ` Guenter Roeck
2022-04-29 0:38 ` Liam Howlett
2022-04-29 1:16 ` Andrew Morton
2022-05-02 0:14 ` Liam Howlett
2022-05-02 0:24 ` Andrew Morton
2022-05-02 10:18 ` Heiko Carstens
2022-05-02 13:31 ` Liam Howlett
2022-05-02 18:50 ` Heiko Carstens
2022-05-03 19:48 ` Heiko Carstens [this message]
2022-05-03 21:55 ` Liam Howlett
2022-05-04 7:37 ` Janosch Frank
2022-05-04 18:31 ` David Hildenbrand
2022-05-04 18:47 ` Liam Howlett
2022-06-29 7:04 ` qemu-system-s390x hang in tcg (was: Re: [PATCH v8 23/70] mm/mmap: change do_brk_flags() to expand existing VMA and add do_brk_munmap()) Sven Schnelle
2022-06-29 8:10 ` Alex Bennée
2022-06-29 10:46 ` qemu-system-s390x hang in tcg Sven Schnelle
2022-06-29 12:18 ` Sven Schnelle
2022-06-29 14:52 ` Alex Bennée
2022-06-30 3:03 ` Richard Henderson
2022-05-02 7:08 ` [PATCH v8 23/70] mm/mmap: change do_brk_flags() to expand existing VMA and add do_brk_munmap() Juergen Gross
2022-04-26 15:06 ` [PATCH v8 26/70] mm: remove vmacache Liam Howlett
2022-04-26 15:06 ` [PATCH v8 25/70] mm/mmap: use advanced maple tree API for mmap_region() Liam Howlett
2022-04-26 15:06 ` [PATCH v8 24/70] mm: use maple tree operations for find_vma_intersection() Liam Howlett
2022-04-26 15:06 ` [PATCH v8 27/70] mm: convert vma_lookup() to use mtree_load() Liam Howlett
2022-04-26 15:06 ` [PATCH v8 28/70] mm/mmap: move mmap_region() below do_munmap() Liam Howlett
2022-04-26 15:06 ` [PATCH v8 31/70] arm64: remove mmap linked list from vdso Liam Howlett
2022-04-26 15:06 ` [PATCH v8 29/70] mm/mmap: reorganize munmap to use maple states Liam Howlett
2022-04-26 15:06 ` [PATCH v8 30/70] mm/mmap: change do_brk_munmap() to use do_mas_align_munmap() Liam Howlett
2022-04-26 15:06 ` [PATCH v8 32/70] arm64: Change elfcore for_each_mte_vma() to use VMA iterator Liam Howlett
2022-04-26 15:06 ` [PATCH v8 34/70] powerpc: remove mmap linked list walks Liam Howlett
2022-04-26 15:06 ` [PATCH v8 33/70] parisc: remove mmap linked list from cache handling Liam Howlett
2022-04-26 15:06 ` [PATCH v8 35/70] s390: remove vma linked list walks Liam Howlett
2022-04-26 15:06 ` [PATCH v8 37/70] xtensa: " Liam Howlett
2022-04-26 15:06 ` [PATCH v8 36/70] x86: " Liam Howlett
2022-04-26 15:06 ` [PATCH v8 38/70] cxl: remove vma linked list walk Liam Howlett
2022-04-26 15:06 ` [PATCH v8 39/70] optee: " Liam Howlett
2022-04-26 15:06 ` [PATCH v8 40/70] um: " Liam Howlett
2022-04-26 15:06 ` [PATCH v8 41/70] coredump: " Liam Howlett
2022-04-26 15:06 ` [PATCH v8 43/70] fs/proc/base: use maple tree iterators in place of linked list Liam Howlett
2022-04-26 15:06 ` [PATCH v8 42/70] exec: use VMA iterator instead " Liam Howlett
2022-04-26 15:06 ` [PATCH v8 45/70] userfaultfd: use maple tree iterator to iterate VMAs Liam Howlett
2022-04-27 15:43 ` Liam Howlett
2022-04-26 15:06 ` [PATCH v8 44/70] fs/proc/task_mmu: stop using linked list and highest_vm_end Liam Howlett
2022-04-26 15:06 ` [PATCH v8 48/70] perf: use VMA iterator Liam Howlett
2022-04-26 15:06 ` [PATCH v8 46/70] ipc/shm: use VMA iterator instead of linked list Liam Howlett
2022-04-26 15:06 ` [PATCH v8 47/70] acct: " Liam Howlett
2022-04-26 15:06 ` [PATCH v8 49/70] sched: use maple tree iterator to walk VMAs Liam Howlett
2022-04-26 15:06 ` [PATCH v8 50/70] fork: use VMA iterator Liam Howlett
2022-04-26 15:06 ` [PATCH v8 53/70] mm/khugepaged: stop using vma linked list Liam Howlett
2022-04-26 15:06 ` [PATCH v8 51/70] bpf: remove VMA " Liam Howlett
2022-04-26 15:06 ` [PATCH v8 52/70] mm/gup: use maple tree navigation instead of " Liam Howlett
2022-04-26 15:06 ` [PATCH v8 56/70] mm/memcontrol: stop using mm->highest_vm_end Liam Howlett
2022-04-26 15:06 ` [PATCH v8 55/70] mm/madvise: use vma_find() instead of vma linked list Liam Howlett
2022-04-26 15:06 ` [PATCH v8 54/70] mm/ksm: use vma iterators " Liam Howlett
2022-04-26 15:06 ` [PATCH v8 59/70] mm/mprotect: use maple tree navigation " Liam Howlett
2022-04-26 15:06 ` [PATCH v8 58/70] mm/mlock: use vma iterator and " Liam Howlett
2022-04-26 15:06 ` [PATCH v8 57/70] mm/mempolicy: use vma iterator & maple state " Liam Howlett
2022-04-26 15:06 ` [PATCH v8 61/70] mm/msync: use vma_find() " Liam Howlett
2022-04-26 15:06 ` [PATCH v8 60/70] mm/mremap: use vma_find_intersection() " Liam Howlett
2022-04-26 15:06 ` [PATCH v8 63/70] mm/pagewalk: use vma_find() " Liam Howlett
2022-04-26 15:06 ` [PATCH v8 62/70] mm/oom_kill: use maple tree iterators " Liam Howlett
2022-04-26 15:06 ` [PATCH v8 64/70] mm/swapfile: use vma iterator " Liam Howlett
2022-04-26 15:06 ` [PATCH v8 66/70] nommu: remove uses of VMA " Liam Howlett
2022-04-28 16:05 ` Guenter Roeck
2022-04-28 16:31 ` Guenter Roeck
2022-04-29 20:16 ` Liam Howlett
2022-04-26 15:06 ` [PATCH v8 65/70] i915: use the VMA iterator Liam Howlett
2022-04-26 15:06 ` [PATCH v8 67/70] riscv: use vma iterator for vdso Liam Howlett
2022-04-26 15:06 ` [PATCH v8 68/70] mm: remove the vma linked list Liam Howlett
2022-04-26 15:06 ` [PATCH v8 69/70] mm/mmap: drop range_has_overlap() function Liam Howlett
2022-04-26 15:06 ` [PATCH v8 70/70] mm/mmap.c: pass in mapping to __vma_link_file() Liam Howlett
2022-04-26 20:06 ` [PATCH v8 00/70] Introducing the Maple Tree Andrew Morton
2022-04-26 20:08 ` Andrew Morton
2022-04-26 20:23 ` Matthew Wilcox
2022-04-27 14:08 ` Liam Howlett
2022-04-27 17:33 ` Andrew Morton
2022-04-27 18:12 ` Matthew Wilcox
2022-05-01 20:26 ` Davidlohr Bueso
2022-05-01 23:56 ` Andrew Morton
2022-05-04 0:43 ` Liam Howlett
2022-04-28 2:28 ` Liam Howlett
2022-04-27 16:10 ` Qian Cai
2022-04-27 16:51 ` Liam Howlett
2022-04-27 20:21 ` Qian Cai
2022-04-27 22:41 ` Liam Howlett
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