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[Xen-devel] xen crashes on assertion failure in free_domheap_pages

To: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-devel] xen crashes on assertion failure in free_domheap_pages
From: Kip Macy <kip.macy@xxxxxxxxx>
Date: Thu, 22 Sep 2005 12:14:28 -0700
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I'm running unstable from as of:

changeset:   6986:f71bb61e0500
tag:         tip
user:        kaf24@xxxxxxxxxxxxxxxxxxxx
date:        Wed Sep 21 09:36:46 2005 +0000
summary:     Fix mapping of shared ring pages into backend drivers.

Will the "more comprehensive fix" from earlier today fix the following problem?


sr0 login: EXT2-fs warning: mounting unchecked fs, running e2fsck is recommended
(XEN) (file=grant_table.c, line=1054) Grant unref rd(1) ld(0) frm(ae4f2) flgs(0).
(XEN) (file=grant_table.c, line=1054) Grant unref rd(1) ld(0) frm(ae4f2) flgs(0).
(XEN) (file=grant_table.c, line=1054) Grant unref rd(1) ld(0) frm(ae4f2) flgs(0).
(XEN) (file=grant_table.c, line=1054) Grant unref rd(1) ld(0) frm(ae4f2) flgs(0).
stop_this_cpu disable_local_APIC
stop_this_cpu disable_local_APIC
stop_this_cpu disable_local_APIC
smp_send_stop disable_local_APIC
(XEN) (file=grant_table.c, line=1054) Grant unref rd(1) ld(0) frm(ae4f2) flgs(0).
(XEN) Assertion '((pg[i].u.inuse.type_info & PGT_count_mask) == 0) || shadow_tainted_refcnts(d)' failed, line
614, file page_alloc.c
(XEN) BUG at page_alloc.c:614
(XEN) CPU:    0
(XEN) EIP:    e008:[<ff11450f>] free_domheap_pages+0x246/0x42a
(XEN) EFLAGS: 00010282   CONTEXT: hypervisor
(XEN) eax: ff17fbb8   ebx: 00000019   ecx: 00000000   edx: 00000000
(XEN) esi: 00000001   edi: ff103fac   ebp: ff103c9c   esp: ff103c64
(XEN) cr0: 8005003b   cr3: ba7ce000
(XEN) ds: e010   es: e010   fs: 0000   gs: 0000   ss: e010   cs: e008
(XEN) Xen stack trace from esp=ff103c64:
(XEN)    ff172839 ff1727dc 00000266 ff1727dc ff19bee0 ff19bee0 ff103c9c ff0b8f00
(XEN)    00000000 ffbe2080 ff103c9c 00000000 00000019 00000001 ff103d0c ff10c19e
(XEN)    fd4576b0 00000000 00efc333 ff12c24a 00000004 00000004 00000001 00000001
(XEN)    00000004 00000000 00000001 fd4576bc 00ef0000 ff11e90f 0000e008 00000286
(XEN)    ff17fbb8 0000000a ff171cf0 ff103d30 00000001 f0000005 00000001 00000001
(XEN)    00000001 00000000 ff103d7c ff10e085 fd4576b0 ffbd9018 0000041e 00000001
(XEN)    00000000 000ae4f2 00000000 00000004 80000002 00000000 00000001 00000001
(XEN)    00001700 00000001 00000002 00000001 00000001 ffbe2080 00000000 ffbf300c
(XEN)    ffbd18a4 ffbe2d80 ffbf7f80 00000001 00000203 00000003 ff103dac ff131b04
(XEN)    ffbe2080 ffbf6a00 000ae4f2 00000000 00000001 00000000 8f4ec063 ffbe2080
(XEN)    fd4576b0 000ae4f2 ff103dec ff136951 ae4f2063 ffbf6a00 8f4ec063 f0000001
(XEN)    f0000001 f0000002 ff103dec 00000000 00000004 fe320000 ff103de0 ae4f2063
(XEN)    fe320000 00000000 ff103e8c ff10bfc1 c8000000 8f4ec063 ffbf6a00 ffbf4080
(XEN)    ffbf4080 00000001 00e34917 00000000 c4b40000 00000001 ff103e5c ff118cc3
(XEN)    ffbf4080 00000000 00000004 00000003 00000001 00000000 ffbc18a4 00000003
(XEN)    ffbc8310 00000003 0008f4ec ff108599 ff103e70 8f4ec063 8f4ec061 00000001
(XEN)    00000001 00000000 0008f4ec 00010003 ffbbd018 ffbc18a4 00000001 02030002
(XEN)    00000000 c0715e40 ff103f3c ff10c841 ffbf6a00 ffbf4080 ffbc8080 00000203
(XEN)    00000002 c8000000 00000000 ff103f10 ff103fb4 ff103ed8 c8000000 00000000
(XEN)    5000e3e6 00000000 00000000 ff19e800 00000000 00000000 ff103f54 c0715e08
(XEN) Xen call trace:
(XEN)    [<ff11450f>] free_domheap_pages+0x246/0x42a
(XEN)    [<ff10c19e>] put_page+0xde/0xe0
(XEN)    [<ff10e085>] gnttab_check_unmap+0x2ad/0x32a
(XEN)    [<ff131b04>] put_page_from_l1e+0x7f/0xd7
(XEN)    [<ff136951>] update_grant_va_mapping+0x19c/0x1ec
(XEN)    [<ff10bfc1>] __gnttab_activate_grant_ref+0x679/0x778
(XEN)    [<ff10c841>] __gnttab_map_grant_ref+0x4ba/0x5e5
(XEN)    [<ff10cabf>] gnttab_map_grant_ref+0x41/0xaf
(XEN)    [<ff10dccb>] do_grant_table_op+0xfb/0x208
(XEN)    [<ff151d3f>] hypercall+0x8f/0xaf
(XEN)   
(XEN)
(XEN) ****************************************
(XEN) Panic on CPU 0:
(XEN) CPU0 FATAL TRAP: vector = 6 (invalid operand)
(XEN) [error_code=0000]
(XEN) ****************************************
(XEN)
(XEN) Reboot in five seconds...

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