From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
To: Nicholas Piggin <npiggin@gmail.com>
Cc: <linux-mm@kvack.org>, <linux-kernel@vger.kernel.org>,
<linux-arch@vger.kernel.org>, <linuxppc-dev@lists.ozlabs.org>,
"Catalin Marinas" <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
<x86@kernel.org>, "H. Peter Anvin" <hpa@zytor.com>,
"Zefan Li" <lizefan@huawei.com>
Subject: Re: [PATCH v3 0/8] huge vmalloc mappings
Date: Tue, 11 Aug 2020 17:32:17 +0100 [thread overview]
Message-ID: <20200811173217.0000161e@huawei.com> (raw)
In-Reply-To: <20200810022732.1150009-1-npiggin@gmail.com>
On Mon, 10 Aug 2020 12:27:24 +1000
Nicholas Piggin <npiggin@gmail.com> wrote:
> Not tested on x86 or arm64, would appreciate a quick test there so I can
> ask Andrew to put it in -mm. Other option is I can disable huge vmallocs
> for them for the time being.
Hi Nicholas,
For arm64 testing with a Kunpeng920.
I ran a quick sanity test with this series on top of mainline (yes mid merge window
so who knows what state is...). Could I be missing some dependency?
Without them it boots, with them it doesn't. Any immediate guesses?
[ 0.069507] Dentry cache hash table entries: 33554432 (order: 16, 268435456 bytes, vmalloc)
[ 0.087134] Inode-cache hash table entries: 16777216 (order: 15, 134217728 bytes, vmalloc)
[ 0.097044] Mount-cache hash table entries: 524288 (order: 10, 4194304 bytes, vmalloc)
[ 0.106534] Mountpoint-cache hash table entries: 524288 (order: 10, 4194304 bytes, vmalloc)
[ 0.116349] ------------[ cut here ]------------
[ 0.121465] kernel BUG at kernel/fork.c:402!
[ 0.126194] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP
[ 0.132273] Modules linked in:
[ 0.135653] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.8.0-12307-g2b197e00c338 #637
[ 0.144240] pstate: 20000009 (nzCv daif -PAN -UAO BTYPE=--)
[ 0.150420] pc : copy_process+0x10c0/0x1690
[ 0.155049] lr : copy_process+0x2e0/0x1690
[ 0.159584] sp : ffffd96c55773d60
[ 0.163250] x29: ffffd96c55773d70 x28: ffff20bf87060000
[ 0.169134] x27: 0000000000800300 x26: 00000000ffffffff
[ 0.175018] x25: ffff8000108a8000 x24: ffffd96c55a32708
[ 0.180901] x23: ffff20bf87043800 x22: 0000000000000000
[ 0.186787] x21: 0000000000000000 x20: ffffd96c55773ef0
[ 0.192672] x19: ffffd96c55783bc0 x18: 0000000000000010
[ 0.198557] x17: 00000000855c858e x16: 00000000a8256fca
[ 0.204441] x15: ffffffffffffffff x14: ffff000000000000
[ 0.210327] x13: ffff800010901000 x12: ffff8000108b1000
[ 0.216212] x11: 0000000000000001 x10: ffffd96c55a6d000
[ 0.222096] x9 : ffffd96c53bf7594 x8 : 0000000000000041
[ 0.227980] x7 : ffff004fffffa6b0 x6 : ffff800010aa8000
[ 0.233864] x5 : 000000000000fffd x4 : 0000000000000000
[ 0.239748] x3 : ffffd96c55a63598 x2 : 0000000000000001
[ 0.245632] x1 : ffffd96c55783bc0 x0 : 0000000000000008
[ 0.251519] Call trace:
[ 0.254221] copy_process+0x10c0/0x1690
[ 0.258466] _do_fork+0x98/0x488
[ 0.262036] kernel_thread+0x6c/0x90
[ 0.265997] rest_init+0x38/0xf0
[ 0.269568] arch_call_rest_init+0x18/0x24
[ 0.274105] start_kernel+0x60c/0x644
[ 0.278159] Code: f000a441 f943f421 cb010000 17ffffe1 (d4210000)
[ 0.284961] ---[ end trace 985361e2cb97a0d9 ]---
[ 0.290073] Kernel panic - not syncing: Attempted to kill the idle task!
[ 0.297532] ---[ end Kernel panic - not syncing: Attempted to kill the idle task! ]---
Thanks,
Jonathan
>
> Since v2:
> - Rebased on vmalloc cleanups, split series into simpler pieces.
> - Fixed several compile errors and warnings
> - Keep the page array and accounting in small page units because
> struct vm_struct is an interface (this should fix x86 vmap stack debug
> assert). [Thanks Zefan]
>
> Nicholas Piggin (8):
> mm/vmalloc: fix vmalloc_to_page for huge vmap mappings
> mm: apply_to_pte_range warn and fail if a large pte is encountered
> mm/vmalloc: rename vmap_*_range vmap_pages_*_range
> lib/ioremap: rename ioremap_*_range to vmap_*_range
> mm: HUGE_VMAP arch support cleanup
> mm: Move vmap_range from lib/ioremap.c to mm/vmalloc.c
> mm/vmalloc: add vmap_range_noflush variant
> mm/vmalloc: Hugepage vmalloc mappings
>
> .../admin-guide/kernel-parameters.txt | 2 +
> arch/arm64/mm/mmu.c | 10 +-
> arch/powerpc/mm/book3s64/radix_pgtable.c | 8 +-
> arch/x86/mm/ioremap.c | 10 +-
> include/linux/io.h | 9 -
> include/linux/vmalloc.h | 13 +
> init/main.c | 1 -
> mm/ioremap.c | 231 +--------
> mm/memory.c | 60 ++-
> mm/vmalloc.c | 442 +++++++++++++++---
> 10 files changed, 453 insertions(+), 333 deletions(-)
>
next prev parent reply other threads:[~2020-08-11 16:32 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-10 2:27 [PATCH v3 0/8] huge vmalloc mappings Nicholas Piggin
2020-08-10 2:27 ` [PATCH v3 1/8] mm/vmalloc: fix vmalloc_to_page for huge vmap mappings Nicholas Piggin
2020-08-10 2:27 ` [PATCH v3 2/8] mm: apply_to_pte_range warn and fail if a large pte is encountered Nicholas Piggin
2020-08-10 2:27 ` [PATCH v3 3/8] mm/vmalloc: rename vmap_*_range vmap_pages_*_range Nicholas Piggin
2020-08-10 2:27 ` [PATCH v3 4/8] lib/ioremap: rename ioremap_*_range to vmap_*_range Nicholas Piggin
2020-08-10 2:27 ` [PATCH v3 5/8] mm: HUGE_VMAP arch support cleanup Nicholas Piggin
2020-08-10 3:58 ` kernel test robot
2020-08-10 2:27 ` [PATCH v3 6/8] mm: Move vmap_range from lib/ioremap.c to mm/vmalloc.c Nicholas Piggin
2020-08-10 2:27 ` [PATCH v3 7/8] mm/vmalloc: add vmap_range_noflush variant Nicholas Piggin
2020-08-10 2:27 ` [PATCH v3 8/8] mm/vmalloc: Hugepage vmalloc mappings Nicholas Piggin
2020-08-12 12:25 ` Jonathan Cameron
2020-08-12 16:18 ` Jonathan Cameron
2020-08-11 16:32 ` Jonathan Cameron [this message]
2020-08-12 1:07 ` [PATCH v3 0/8] huge " Zefan Li
2020-08-12 8:11 ` Nicholas Piggin
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