Messages in this thread | | | Date | Sat, 01 Jul 2006 18:06:33 +0100 | From | Daniel Drake <> | Subject | Eeek! page_mapcount(page) went negative! (-1) |
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A user at http://bugs.gentoo.org/138366 reported a one-off crash on x86 with 2.6.16.19. Here's hoping it might be useful to somebody:
Eeek! page_mapcount(page) went negative! (-1) page->flags = 8001003c page->count = 1 page->mapping = f6ad2418 ------------[ cut here ]------------ kernel BUG at mm/rmap.c:560! invalid opcode: 0000 [#1] PREEMPT CPU: 0 EIP is at page_remove_rmap+0x93/0xa0 eax: ffffffff ebx: c1234040 ecx: 0000827e edx: c0374d01 esi: b2570000 edi: c1234040 ebp: cdf8bf2c esp: cdf8be84 ds: 007b es: 007b ss: 0068 Process X (pid: 27937, threadinfo=cdf8a000 task=dc73da90) Stack: <0>c0327022 f6ad2418 dc6fd5c0 c014592f c1234040 b2570000 11a0 2067 11a02067 fffffffc ffffffff d6c562e0 b26ab000 e465fb28 b26ab000 cdf8bf2 c c0145ac5 c03dbbec f0cd96fc e465fb24 b256c000 b26ab000 cdf8bf2c 0000000 0 b26aafff Call Trace: [zap_pte_range+351/576] zap_pte_range+0x15f/0x240 [<c014592f>] zap_pte_range+0x15f/0x240 [unmap_page_range+181/320] unmap_page_range+0xb5/0x140 [<c0145ac5>] unmap_page_range+0xb5/0x140 [unmap_vmas+239/496] unmap_vmas+0xef/0x1f0 [<c0145c3f>] unmap_vmas+0xef/0x1f0 [unmap_region+149/304] unmap_region+0x95/0x130 [<c014a255>] unmap_region+0x95/0x130 [do_munmap+275/384] do_munmap+0x113/0x180 [<c014a5d3>] do_munmap+0x113/0x180 [sys_munmap+68/112] sys_munmap+0x44/0x70 [<c014a684>] sys_munmap+0x44/0x70 [sysenter_past_esp+84/117] sysenter_past_esp+0x54/0x75 [<c0102ddb>] sysenter_past_esp+0x54/0x75 Code: 53 0c 8b 42 04 c7 04 24 0b 70 32 c0 40 89 44 24 04 e8 c2 b0 fc ff 8b 43 10 c7 04 24 22 70 32 c0 89 44 24 04 e8 af b0 fc ff eb 86 <0f> 0b 30 02 e0 6f 32 c0 eb 82 8d 76 00 83 ec 2c 89 5c 24 1c 8b - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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