From: Sasha Levin <sasha.levin@oracle.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: "linux-mm@kvack.org" <linux-mm@kvack.org>,
LKML <linux-kernel@vger.kernel.org>,
Dave Jones <davej@redhat.com>
Subject: mm: kernel BUG at mm/huge_memory.c:1440!
Date: Mon, 23 Dec 2013 14:30:54 -0500 [thread overview]
Message-ID: <52B88F6E.8070909@oracle.com> (raw)
Hi all,
While fuzzing with trinity inside a KVM tools guest running latest -next kernel, I've stumbled on
the following spew.
page = pmd_page(orig_pmd);
page_remove_rmap(page);
VM_BUG_ON(page_mapcount(page) < 0);
add_mm_counter(tlb->mm, MM_ANONPAGES, -HPAGE_PMD_NR);
VM_BUG_ON(!PageHead(page)); <=== HERE
atomic_long_dec(&tlb->mm->nr_ptes);
spin_unlock(ptl);
tlb_remove_page(tlb, page);
[ 265.474585] kernel BUG at mm/huge_memory.c:1440!
[ 265.475129] invalid opcode: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
[ 265.476684] Dumping ftrace buffer:
[ 265.477144] (ftrace buffer empty)
[ 265.478398] Modules linked in:
[ 265.478807] CPU: 8 PID: 11344 Comm: trinity-c206 Tainted: G W 3.13.0-rc5-ne
xt-20131223-sasha-00015-gec22156-dirty #8
[ 265.480172] task: ffff8801cb573000 ti: ffff8801cbd3a000 task.ti: ffff8801cbd3a000
[ 265.480172] RIP: 0010:[<ffffffff812c7f70>] [<ffffffff812c7f70>] zap_huge_pmd+0x170/0
x1f0
[ 265.480172] RSP: 0000:ffff8801cbd3bc78 EFLAGS: 00010246
[ 265.480172] RAX: 015fffff80090018 RBX: ffff8801cbd3bde8 RCX: ffffffffffffff9c
[ 265.480172] RDX: ffffffffffffffff RSI: 0000000000000008 RDI: ffff8800bffd2000
[ 265.480172] RBP: ffff8801cbd3bcb8 R08: 0000000000000000 R09: 0000000000000000
[ 265.480172] R10: 0000000000000001 R11: 0000000000000000 R12: ffffea0002856740
[ 265.480172] R13: ffffea0002d50000 R14: 00007ff915000000 R15: 00007ff930e48fff
[ 265.480172] FS: 00007ff934899700(0000) GS:ffff88014d400000(0000) knlGS:0000000000000
000
[ 265.480172] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 265.480172] CR2: 00007ff93428a000 CR3: 000000010babe000 CR4: 00000000000006e0
[ 265.480172] Stack:
[ 265.480172] 00000000000004dd ffff8801ccbfbb60 ffff8801cbd3bcb8 ffff8801cbb15540
[ 265.480172] 00007ff915000000 00007ff930e49000 ffff8801cbd3bde8 00007ff930e48fff
[ 265.480172] ffff8801cbd3bd48 ffffffff812885b6 ffff88005f5d20c0 00007ff915200000
[ 265.480172] Call Trace:
[ 265.480172] [<ffffffff812885b6>] unmap_page_range+0x2c6/0x410
[ 265.480172] [<ffffffff81288801>] unmap_single_vma+0x101/0x120
[ 265.480172] [<ffffffff81288881>] unmap_vmas+0x61/0xa0
[ 265.480172] [<ffffffff8128f730>] exit_mmap+0xd0/0x170
[ 265.480172] [<ffffffff81138860>] mmput+0x70/0xe0
[ 265.480172] [<ffffffff8113c89d>] exit_mm+0x18d/0x1a0
[ 265.480172] [<ffffffff811ea355>] ? acct_collect+0x175/0x1b0
[ 265.480172] [<ffffffff8113ed0f>] do_exit+0x26f/0x520
[ 265.480172] [<ffffffff8113f069>] do_group_exit+0xa9/0xe0
[ 265.480172] [<ffffffff8113f0b7>] SyS_exit_group+0x17/0x20
[ 265.480172] [<ffffffff845f10d0>] tracesys+0xdd/0xe2
[ 265.480172] Code: 0f 0b 66 0f 1f 84 00 00 00 00 00 eb fe 66 0f 1f 44 00 00 48 8b 03 f0 48 81 80
50 03 00 00 00 fe ff ff 49 8b 45 00 f6 c4 40 75 10 <0f> 0b 66 0f 1f 44 00 00 eb fe 66 0f 1f 44 00 00
48 8b 03 f0 48
[ 265.480172] RIP [<ffffffff812c7f70>] zap_huge_pmd+0x170/0x1f0
[ 265.480172] RSP <ffff8801cbd3bc78>
Thanks,
Sasha
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WARNING: multiple messages have this Message-ID (diff)
From: Sasha Levin <sasha.levin@oracle.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: "linux-mm@kvack.org" <linux-mm@kvack.org>,
LKML <linux-kernel@vger.kernel.org>,
Dave Jones <davej@redhat.com>
Subject: mm: kernel BUG at mm/huge_memory.c:1440!
Date: Mon, 23 Dec 2013 14:30:54 -0500 [thread overview]
Message-ID: <52B88F6E.8070909@oracle.com> (raw)
Hi all,
While fuzzing with trinity inside a KVM tools guest running latest -next kernel, I've stumbled on
the following spew.
page = pmd_page(orig_pmd);
page_remove_rmap(page);
VM_BUG_ON(page_mapcount(page) < 0);
add_mm_counter(tlb->mm, MM_ANONPAGES, -HPAGE_PMD_NR);
VM_BUG_ON(!PageHead(page)); <=== HERE
atomic_long_dec(&tlb->mm->nr_ptes);
spin_unlock(ptl);
tlb_remove_page(tlb, page);
[ 265.474585] kernel BUG at mm/huge_memory.c:1440!
[ 265.475129] invalid opcode: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
[ 265.476684] Dumping ftrace buffer:
[ 265.477144] (ftrace buffer empty)
[ 265.478398] Modules linked in:
[ 265.478807] CPU: 8 PID: 11344 Comm: trinity-c206 Tainted: G W 3.13.0-rc5-ne
xt-20131223-sasha-00015-gec22156-dirty #8
[ 265.480172] task: ffff8801cb573000 ti: ffff8801cbd3a000 task.ti: ffff8801cbd3a000
[ 265.480172] RIP: 0010:[<ffffffff812c7f70>] [<ffffffff812c7f70>] zap_huge_pmd+0x170/0
x1f0
[ 265.480172] RSP: 0000:ffff8801cbd3bc78 EFLAGS: 00010246
[ 265.480172] RAX: 015fffff80090018 RBX: ffff8801cbd3bde8 RCX: ffffffffffffff9c
[ 265.480172] RDX: ffffffffffffffff RSI: 0000000000000008 RDI: ffff8800bffd2000
[ 265.480172] RBP: ffff8801cbd3bcb8 R08: 0000000000000000 R09: 0000000000000000
[ 265.480172] R10: 0000000000000001 R11: 0000000000000000 R12: ffffea0002856740
[ 265.480172] R13: ffffea0002d50000 R14: 00007ff915000000 R15: 00007ff930e48fff
[ 265.480172] FS: 00007ff934899700(0000) GS:ffff88014d400000(0000) knlGS:0000000000000
000
[ 265.480172] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 265.480172] CR2: 00007ff93428a000 CR3: 000000010babe000 CR4: 00000000000006e0
[ 265.480172] Stack:
[ 265.480172] 00000000000004dd ffff8801ccbfbb60 ffff8801cbd3bcb8 ffff8801cbb15540
[ 265.480172] 00007ff915000000 00007ff930e49000 ffff8801cbd3bde8 00007ff930e48fff
[ 265.480172] ffff8801cbd3bd48 ffffffff812885b6 ffff88005f5d20c0 00007ff915200000
[ 265.480172] Call Trace:
[ 265.480172] [<ffffffff812885b6>] unmap_page_range+0x2c6/0x410
[ 265.480172] [<ffffffff81288801>] unmap_single_vma+0x101/0x120
[ 265.480172] [<ffffffff81288881>] unmap_vmas+0x61/0xa0
[ 265.480172] [<ffffffff8128f730>] exit_mmap+0xd0/0x170
[ 265.480172] [<ffffffff81138860>] mmput+0x70/0xe0
[ 265.480172] [<ffffffff8113c89d>] exit_mm+0x18d/0x1a0
[ 265.480172] [<ffffffff811ea355>] ? acct_collect+0x175/0x1b0
[ 265.480172] [<ffffffff8113ed0f>] do_exit+0x26f/0x520
[ 265.480172] [<ffffffff8113f069>] do_group_exit+0xa9/0xe0
[ 265.480172] [<ffffffff8113f0b7>] SyS_exit_group+0x17/0x20
[ 265.480172] [<ffffffff845f10d0>] tracesys+0xdd/0xe2
[ 265.480172] Code: 0f 0b 66 0f 1f 84 00 00 00 00 00 eb fe 66 0f 1f 44 00 00 48 8b 03 f0 48 81 80
50 03 00 00 00 fe ff ff 49 8b 45 00 f6 c4 40 75 10 <0f> 0b 66 0f 1f 44 00 00 eb fe 66 0f 1f 44 00 00
48 8b 03 f0 48
[ 265.480172] RIP [<ffffffff812c7f70>] zap_huge_pmd+0x170/0x1f0
[ 265.480172] RSP <ffff8801cbd3bc78>
Thanks,
Sasha
next reply other threads:[~2013-12-23 19:31 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-23 19:30 Sasha Levin [this message]
2013-12-23 19:30 ` mm: kernel BUG at mm/huge_memory.c:1440! Sasha Levin
2013-12-23 20:02 ` Kirill A. Shutemov
2013-12-23 20:02 ` Kirill A. Shutemov
2013-12-23 20:06 ` Sasha Levin
2013-12-23 20:06 ` Sasha Levin
2013-12-23 21:28 ` Sasha Levin
2013-12-23 21:28 ` Sasha Levin
2014-01-04 14:25 ` Sasha Levin
2014-01-04 14:25 ` Sasha Levin
2014-01-09 10:38 ` Vlastimil Babka
2014-01-09 10:38 ` Vlastimil Babka
2014-01-10 17:00 ` Kirill A. Shutemov
2014-01-10 17:00 ` Kirill A. Shutemov
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