linux/fs/ubifs/tnc_commit.c

1112 lines
28 KiB

UBIFS: extend debug/message capabilities In the case where we have more than one volumes on different UBI devices, it may be not that easy to tell which volume prints the messages. Add ubi number and volume id in ubifs_msg/warn/error to help debug. These two values are passed by struct ubifs_info. For those where ubifs_info is not initialized yet, ubifs_* is replaced by pr_*. For those where ubifs_info is not avaliable, ubifs_info is passed to the calling function as a const parameter. The output looks like, [ 95.444879] UBIFS (ubi0:1): background thread "ubifs_bgt0_1" started, PID 696 [ 95.484688] UBIFS (ubi0:1): UBIFS: mounted UBI device 0, volume 1, name "test1" [ 95.484694] UBIFS (ubi0:1): LEB size: 126976 bytes (124 KiB), min./max. I/O unit sizes: 2048 bytes/2048 bytes [ 95.484699] UBIFS (ubi0:1): FS size: 30220288 bytes (28 MiB, 238 LEBs), journal size 1523712 bytes (1 MiB, 12 LEBs) [ 95.484703] UBIFS (ubi0:1): reserved for root: 1427378 bytes (1393 KiB) [ 95.484709] UBIFS (ubi0:1): media format: w4/r0 (latest is w4/r0), UUID 40DFFC0E-70BE-4193-8905-F7D6DFE60B17, small LPT model [ 95.489875] UBIFS (ubi1:0): background thread "ubifs_bgt1_0" started, PID 699 [ 95.529713] UBIFS (ubi1:0): UBIFS: mounted UBI device 1, volume 0, name "test2" [ 95.529718] UBIFS (ubi1:0): LEB size: 126976 bytes (124 KiB), min./max. I/O unit sizes: 2048 bytes/2048 bytes [ 95.529724] UBIFS (ubi1:0): FS size: 19808256 bytes (18 MiB, 156 LEBs), journal size 1015809 bytes (0 MiB, 8 LEBs) [ 95.529727] UBIFS (ubi1:0): reserved for root: 935592 bytes (913 KiB) [ 95.529733] UBIFS (ubi1:0): media format: w4/r0 (latest is w4/r0), UUID EEB7779D-F419-4CA9-811B-831CAC7233D4, small LPT model [ 954.264767] UBIFS error (ubi1:0 pid 756): ubifs_read_node: bad node type (255 but expected 6) [ 954.367030] UBIFS error (ubi1:0 pid 756): ubifs_read_node: bad node at LEB 0:0, LEB mapping status 1 Signed-off-by: Sheng Yong <shengyong1@huawei.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2015-03-20 10:39:42 +00:00
ubifs: ubifs_tnc_start_commit: Fix OOB in layout_in_gaps Running stress-test test_2 in mtd-utils on ubi device, sometimes we can get following oops message: BUG: unable to handle page fault for address: ffffffff00000140 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 280a067 P4D 280a067 PUD 0 Oops: 0000 [#1] SMP CPU: 0 PID: 60 Comm: kworker/u16:1 Kdump: loaded Not tainted 5.2.0 #13 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.0 -0-ga698c8995f-prebuilt.qemu.org 04/01/2014 Workqueue: writeback wb_workfn (flush-ubifs_0_0) RIP: 0010:rb_next_postorder+0x2e/0xb0 Code: 80 db 03 01 48 85 ff 0f 84 97 00 00 00 48 8b 17 48 83 05 bc 80 db 03 01 48 83 e2 fc 0f 84 82 00 00 00 48 83 05 b2 80 db 03 01 <48> 3b 7a 10 48 89 d0 74 02 f3 c3 48 8b 52 08 48 83 05 a3 80 db 03 RSP: 0018:ffffc90000887758 EFLAGS: 00010202 RAX: ffff888129ae4700 RBX: ffff888138b08400 RCX: 0000000080800001 RDX: ffffffff00000130 RSI: 0000000080800024 RDI: ffff888138b08400 RBP: ffff888138b08400 R08: ffffea0004a6b920 R09: 0000000000000000 R10: ffffc90000887740 R11: 0000000000000001 R12: ffff888128d48000 R13: 0000000000000800 R14: 000000000000011e R15: 00000000000007c8 FS: 0000000000000000(0000) GS:ffff88813ba00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffff00000140 CR3: 000000013789d000 CR4: 00000000000006f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: destroy_old_idx+0x5d/0xa0 [ubifs] ubifs_tnc_start_commit+0x4fe/0x1380 [ubifs] do_commit+0x3eb/0x830 [ubifs] ubifs_run_commit+0xdc/0x1c0 [ubifs] Above Oops are due to the slab-out-of-bounds happened in do-while of function layout_in_gaps indirectly called by ubifs_tnc_start_commit. In function layout_in_gaps, there is a do-while loop placing index nodes into the gaps created by obsolete index nodes in non-empty index LEBs until rest index nodes can totally be placed into pre-allocated empty LEBs. @c->gap_lebs points to a memory area(integer array) which records LEB numbers used by 'in-the-gaps' method. Whenever a fitable index LEB is found, corresponding lnum will be incrementally written into the memory area pointed by @c->gap_lebs. The size ((@c->lst.idx_lebs + 1) * sizeof(int)) of memory area is allocated before do-while loop and can not be changed in the loop. But @c->lst.idx_lebs could be increased by function ubifs_change_lp (called by layout_leb_in_gaps->ubifs_find_dirty_idx_leb->get_idx_gc_leb) during the loop. So, sometimes oob happens when number of cycles in do-while loop exceeds the original value of @c->lst.idx_lebs. See detail in https://bugzilla.kernel.org/show_bug.cgi?id=204229. This patch fixes oob in layout_in_gaps. Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com> Signed-off-by: Richard Weinberger <richard@nod.at>
2019-07-20 14:05:20 +08:00
ubifs: ubifs_tnc_start_commit: Fix OOB in layout_in_gaps Running stress-test test_2 in mtd-utils on ubi device, sometimes we can get following oops message: BUG: unable to handle page fault for address: ffffffff00000140 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 280a067 P4D 280a067 PUD 0 Oops: 0000 [#1] SMP CPU: 0 PID: 60 Comm: kworker/u16:1 Kdump: loaded Not tainted 5.2.0 #13 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.0 -0-ga698c8995f-prebuilt.qemu.org 04/01/2014 Workqueue: writeback wb_workfn (flush-ubifs_0_0) RIP: 0010:rb_next_postorder+0x2e/0xb0 Code: 80 db 03 01 48 85 ff 0f 84 97 00 00 00 48 8b 17 48 83 05 bc 80 db 03 01 48 83 e2 fc 0f 84 82 00 00 00 48 83 05 b2 80 db 03 01 <48> 3b 7a 10 48 89 d0 74 02 f3 c3 48 8b 52 08 48 83 05 a3 80 db 03 RSP: 0018:ffffc90000887758 EFLAGS: 00010202 RAX: ffff888129ae4700 RBX: ffff888138b08400 RCX: 0000000080800001 RDX: ffffffff00000130 RSI: 0000000080800024 RDI: ffff888138b08400 RBP: ffff888138b08400 R08: ffffea0004a6b920 R09: 0000000000000000 R10: ffffc90000887740 R11: 0000000000000001 R12: ffff888128d48000 R13: 0000000000000800 R14: 000000000000011e R15: 00000000000007c8 FS: 0000000000000000(0000) GS:ffff88813ba00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffff00000140 CR3: 000000013789d000 CR4: 00000000000006f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: destroy_old_idx+0x5d/0xa0 [ubifs] ubifs_tnc_start_commit+0x4fe/0x1380 [ubifs] do_commit+0x3eb/0x830 [ubifs] ubifs_run_commit+0xdc/0x1c0 [ubifs] Above Oops are due to the slab-out-of-bounds happened in do-while of function layout_in_gaps indirectly called by ubifs_tnc_start_commit. In function layout_in_gaps, there is a do-while loop placing index nodes into the gaps created by obsolete index nodes in non-empty index LEBs until rest index nodes can totally be placed into pre-allocated empty LEBs. @c->gap_lebs points to a memory area(integer array) which records LEB numbers used by 'in-the-gaps' method. Whenever a fitable index LEB is found, corresponding lnum will be incrementally written into the memory area pointed by @c->gap_lebs. The size ((@c->lst.idx_lebs + 1) * sizeof(int)) of memory area is allocated before do-while loop and can not be changed in the loop. But @c->lst.idx_lebs could be increased by function ubifs_change_lp (called by layout_leb_in_gaps->ubifs_find_dirty_idx_leb->get_idx_gc_leb) during the loop. So, sometimes oob happens when number of cycles in do-while loop exceeds the original value of @c->lst.idx_lebs. See detail in https://bugzilla.kernel.org/show_bug.cgi?id=204229. This patch fixes oob in layout_in_gaps. Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com> Signed-off-by: Richard Weinberger <richard@nod.at>
2019-07-20 14:05:20 +08:00
ubifs: ubifs_tnc_start_commit: Fix OOB in layout_in_gaps Running stress-test test_2 in mtd-utils on ubi device, sometimes we can get following oops message: BUG: unable to handle page fault for address: ffffffff00000140 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 280a067 P4D 280a067 PUD 0 Oops: 0000 [#1] SMP CPU: 0 PID: 60 Comm: kworker/u16:1 Kdump: loaded Not tainted 5.2.0 #13 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.0 -0-ga698c8995f-prebuilt.qemu.org 04/01/2014 Workqueue: writeback wb_workfn (flush-ubifs_0_0) RIP: 0010:rb_next_postorder+0x2e/0xb0 Code: 80 db 03 01 48 85 ff 0f 84 97 00 00 00 48 8b 17 48 83 05 bc 80 db 03 01 48 83 e2 fc 0f 84 82 00 00 00 48 83 05 b2 80 db 03 01 <48> 3b 7a 10 48 89 d0 74 02 f3 c3 48 8b 52 08 48 83 05 a3 80 db 03 RSP: 0018:ffffc90000887758 EFLAGS: 00010202 RAX: ffff888129ae4700 RBX: ffff888138b08400 RCX: 0000000080800001 RDX: ffffffff00000130 RSI: 0000000080800024 RDI: ffff888138b08400 RBP: ffff888138b08400 R08: ffffea0004a6b920 R09: 0000000000000000 R10: ffffc90000887740 R11: 0000000000000001 R12: ffff888128d48000 R13: 0000000000000800 R14: 000000000000011e R15: 00000000000007c8 FS: 0000000000000000(0000) GS:ffff88813ba00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffff00000140 CR3: 000000013789d000 CR4: 00000000000006f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: destroy_old_idx+0x5d/0xa0 [ubifs] ubifs_tnc_start_commit+0x4fe/0x1380 [ubifs] do_commit+0x3eb/0x830 [ubifs] ubifs_run_commit+0xdc/0x1c0 [ubifs] Above Oops are due to the slab-out-of-bounds happened in do-while of function layout_in_gaps indirectly called by ubifs_tnc_start_commit. In function layout_in_gaps, there is a do-while loop placing index nodes into the gaps created by obsolete index nodes in non-empty index LEBs until rest index nodes can totally be placed into pre-allocated empty LEBs. @c->gap_lebs points to a memory area(integer array) which records LEB numbers used by 'in-the-gaps' method. Whenever a fitable index LEB is found, corresponding lnum will be incrementally written into the memory area pointed by @c->gap_lebs. The size ((@c->lst.idx_lebs + 1) * sizeof(int)) of memory area is allocated before do-while loop and can not be changed in the loop. But @c->lst.idx_lebs could be increased by function ubifs_change_lp (called by layout_leb_in_gaps->ubifs_find_dirty_idx_leb->get_idx_gc_leb) during the loop. So, sometimes oob happens when number of cycles in do-while loop exceeds the original value of @c->lst.idx_lebs. See detail in https://bugzilla.kernel.org/show_bug.cgi?id=204229. This patch fixes oob in layout_in_gaps. Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com> Signed-off-by: Richard Weinberger <richard@nod.at>
2019-07-20 14:05:20 +08:00
ubifs: ubifs_tnc_start_commit: Fix OOB in layout_in_gaps Running stress-test test_2 in mtd-utils on ubi device, sometimes we can get following oops message: BUG: unable to handle page fault for address: ffffffff00000140 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 280a067 P4D 280a067 PUD 0 Oops: 0000 [#1] SMP CPU: 0 PID: 60 Comm: kworker/u16:1 Kdump: loaded Not tainted 5.2.0 #13 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.0 -0-ga698c8995f-prebuilt.qemu.org 04/01/2014 Workqueue: writeback wb_workfn (flush-ubifs_0_0) RIP: 0010:rb_next_postorder+0x2e/0xb0 Code: 80 db 03 01 48 85 ff 0f 84 97 00 00 00 48 8b 17 48 83 05 bc 80 db 03 01 48 83 e2 fc 0f 84 82 00 00 00 48 83 05 b2 80 db 03 01 <48> 3b 7a 10 48 89 d0 74 02 f3 c3 48 8b 52 08 48 83 05 a3 80 db 03 RSP: 0018:ffffc90000887758 EFLAGS: 00010202 RAX: ffff888129ae4700 RBX: ffff888138b08400 RCX: 0000000080800001 RDX: ffffffff00000130 RSI: 0000000080800024 RDI: ffff888138b08400 RBP: ffff888138b08400 R08: ffffea0004a6b920 R09: 0000000000000000 R10: ffffc90000887740 R11: 0000000000000001 R12: ffff888128d48000 R13: 0000000000000800 R14: 000000000000011e R15: 00000000000007c8 FS: 0000000000000000(0000) GS:ffff88813ba00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffff00000140 CR3: 000000013789d000 CR4: 00000000000006f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: destroy_old_idx+0x5d/0xa0 [ubifs] ubifs_tnc_start_commit+0x4fe/0x1380 [ubifs] do_commit+0x3eb/0x830 [ubifs] ubifs_run_commit+0xdc/0x1c0 [ubifs] Above Oops are due to the slab-out-of-bounds happened in do-while of function layout_in_gaps indirectly called by ubifs_tnc_start_commit. In function layout_in_gaps, there is a do-while loop placing index nodes into the gaps created by obsolete index nodes in non-empty index LEBs until rest index nodes can totally be placed into pre-allocated empty LEBs. @c->gap_lebs points to a memory area(integer array) which records LEB numbers used by 'in-the-gaps' method. Whenever a fitable index LEB is found, corresponding lnum will be incrementally written into the memory area pointed by @c->gap_lebs. The size ((@c->lst.idx_lebs + 1) * sizeof(int)) of memory area is allocated before do-while loop and can not be changed in the loop. But @c->lst.idx_lebs could be increased by function ubifs_change_lp (called by layout_leb_in_gaps->ubifs_find_dirty_idx_leb->get_idx_gc_leb) during the loop. So, sometimes oob happens when number of cycles in do-while loop exceeds the original value of @c->lst.idx_lebs. See detail in https://bugzilla.kernel.org/show_bug.cgi?id=204229. This patch fixes oob in layout_in_gaps. Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com> Signed-off-by: Richard Weinberger <richard@nod.at>
2019-07-20 14:05:20 +08:00
ubifs: ubifs_tnc_start_commit: Fix OOB in layout_in_gaps Running stress-test test_2 in mtd-utils on ubi device, sometimes we can get following oops message: BUG: unable to handle page fault for address: ffffffff00000140 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 280a067 P4D 280a067 PUD 0 Oops: 0000 [#1] SMP CPU: 0 PID: 60 Comm: kworker/u16:1 Kdump: loaded Not tainted 5.2.0 #13 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.0 -0-ga698c8995f-prebuilt.qemu.org 04/01/2014 Workqueue: writeback wb_workfn (flush-ubifs_0_0) RIP: 0010:rb_next_postorder+0x2e/0xb0 Code: 80 db 03 01 48 85 ff 0f 84 97 00 00 00 48 8b 17 48 83 05 bc 80 db 03 01 48 83 e2 fc 0f 84 82 00 00 00 48 83 05 b2 80 db 03 01 <48> 3b 7a 10 48 89 d0 74 02 f3 c3 48 8b 52 08 48 83 05 a3 80 db 03 RSP: 0018:ffffc90000887758 EFLAGS: 00010202 RAX: ffff888129ae4700 RBX: ffff888138b08400 RCX: 0000000080800001 RDX: ffffffff00000130 RSI: 0000000080800024 RDI: ffff888138b08400 RBP: ffff888138b08400 R08: ffffea0004a6b920 R09: 0000000000000000 R10: ffffc90000887740 R11: 0000000000000001 R12: ffff888128d48000 R13: 0000000000000800 R14: 000000000000011e R15: 00000000000007c8 FS: 0000000000000000(0000) GS:ffff88813ba00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffff00000140 CR3: 000000013789d000 CR4: 00000000000006f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: destroy_old_idx+0x5d/0xa0 [ubifs] ubifs_tnc_start_commit+0x4fe/0x1380 [ubifs] do_commit+0x3eb/0x830 [ubifs] ubifs_run_commit+0xdc/0x1c0 [ubifs] Above Oops are due to the slab-out-of-bounds happened in do-while of function layout_in_gaps indirectly called by ubifs_tnc_start_commit. In function layout_in_gaps, there is a do-while loop placing index nodes into the gaps created by obsolete index nodes in non-empty index LEBs until rest index nodes can totally be placed into pre-allocated empty LEBs. @c->gap_lebs points to a memory area(integer array) which records LEB numbers used by 'in-the-gaps' method. Whenever a fitable index LEB is found, corresponding lnum will be incrementally written into the memory area pointed by @c->gap_lebs. The size ((@c->lst.idx_lebs + 1) * sizeof(int)) of memory area is allocated before do-while loop and can not be changed in the loop. But @c->lst.idx_lebs could be increased by function ubifs_change_lp (called by layout_leb_in_gaps->ubifs_find_dirty_idx_leb->get_idx_gc_leb) during the loop. So, sometimes oob happens when number of cycles in do-while loop exceeds the original value of @c->lst.idx_lebs. See detail in https://bugzilla.kernel.org/show_bug.cgi?id=204229. This patch fixes oob in layout_in_gaps. Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com> Signed-off-by: Richard Weinberger <richard@nod.at>
2019-07-20 14:05:20 +08:00
ubifs: ubifs_tnc_start_commit: Fix OOB in layout_in_gaps Running stress-test test_2 in mtd-utils on ubi device, sometimes we can get following oops message: BUG: unable to handle page fault for address: ffffffff00000140 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 280a067 P4D 280a067 PUD 0 Oops: 0000 [#1] SMP CPU: 0 PID: 60 Comm: kworker/u16:1 Kdump: loaded Not tainted 5.2.0 #13 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.0 -0-ga698c8995f-prebuilt.qemu.org 04/01/2014 Workqueue: writeback wb_workfn (flush-ubifs_0_0) RIP: 0010:rb_next_postorder+0x2e/0xb0 Code: 80 db 03 01 48 85 ff 0f 84 97 00 00 00 48 8b 17 48 83 05 bc 80 db 03 01 48 83 e2 fc 0f 84 82 00 00 00 48 83 05 b2 80 db 03 01 <48> 3b 7a 10 48 89 d0 74 02 f3 c3 48 8b 52 08 48 83 05 a3 80 db 03 RSP: 0018:ffffc90000887758 EFLAGS: 00010202 RAX: ffff888129ae4700 RBX: ffff888138b08400 RCX: 0000000080800001 RDX: ffffffff00000130 RSI: 0000000080800024 RDI: ffff888138b08400 RBP: ffff888138b08400 R08: ffffea0004a6b920 R09: 0000000000000000 R10: ffffc90000887740 R11: 0000000000000001 R12: ffff888128d48000 R13: 0000000000000800 R14: 000000000000011e R15: 00000000000007c8 FS: 0000000000000000(0000) GS:ffff88813ba00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffff00000140 CR3: 000000013789d000 CR4: 00000000000006f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: destroy_old_idx+0x5d/0xa0 [ubifs] ubifs_tnc_start_commit+0x4fe/0x1380 [ubifs] do_commit+0x3eb/0x830 [ubifs] ubifs_run_commit+0xdc/0x1c0 [ubifs] Above Oops are due to the slab-out-of-bounds happened in do-while of function layout_in_gaps indirectly called by ubifs_tnc_start_commit. In function layout_in_gaps, there is a do-while loop placing index nodes into the gaps created by obsolete index nodes in non-empty index LEBs until rest index nodes can totally be placed into pre-allocated empty LEBs. @c->gap_lebs points to a memory area(integer array) which records LEB numbers used by 'in-the-gaps' method. Whenever a fitable index LEB is found, corresponding lnum will be incrementally written into the memory area pointed by @c->gap_lebs. The size ((@c->lst.idx_lebs + 1) * sizeof(int)) of memory area is allocated before do-while loop and can not be changed in the loop. But @c->lst.idx_lebs could be increased by function ubifs_change_lp (called by layout_leb_in_gaps->ubifs_find_dirty_idx_leb->get_idx_gc_leb) during the loop. So, sometimes oob happens when number of cycles in do-while loop exceeds the original value of @c->lst.idx_lebs. See detail in https://bugzilla.kernel.org/show_bug.cgi?id=204229. This patch fixes oob in layout_in_gaps. Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com> Signed-off-by: Richard Weinberger <richard@nod.at>
2019-07-20 14:05:20 +08:00
UBIFS: extend debug/message capabilities In the case where we have more than one volumes on different UBI devices, it may be not that easy to tell which volume prints the messages. Add ubi number and volume id in ubifs_msg/warn/error to help debug. These two values are passed by struct ubifs_info. For those where ubifs_info is not initialized yet, ubifs_* is replaced by pr_*. For those where ubifs_info is not avaliable, ubifs_info is passed to the calling function as a const parameter. The output looks like, [ 95.444879] UBIFS (ubi0:1): background thread "ubifs_bgt0_1" started, PID 696 [ 95.484688] UBIFS (ubi0:1): UBIFS: mounted UBI device 0, volume 1, name "test1" [ 95.484694] UBIFS (ubi0:1): LEB size: 126976 bytes (124 KiB), min./max. I/O unit sizes: 2048 bytes/2048 bytes [ 95.484699] UBIFS (ubi0:1): FS size: 30220288 bytes (28 MiB, 238 LEBs), journal size 1523712 bytes (1 MiB, 12 LEBs) [ 95.484703] UBIFS (ubi0:1): reserved for root: 1427378 bytes (1393 KiB) [ 95.484709] UBIFS (ubi0:1): media format: w4/r0 (latest is w4/r0), UUID 40DFFC0E-70BE-4193-8905-F7D6DFE60B17, small LPT model [ 95.489875] UBIFS (ubi1:0): background thread "ubifs_bgt1_0" started, PID 699 [ 95.529713] UBIFS (ubi1:0): UBIFS: mounted UBI device 1, volume 0, name "test2" [ 95.529718] UBIFS (ubi1:0): LEB size: 126976 bytes (124 KiB), min./max. I/O unit sizes: 2048 bytes/2048 bytes [ 95.529724] UBIFS (ubi1:0): FS size: 19808256 bytes (18 MiB, 156 LEBs), journal size 1015809 bytes (0 MiB, 8 LEBs) [ 95.529727] UBIFS (ubi1:0): reserved for root: 935592 bytes (913 KiB) [ 95.529733] UBIFS (ubi1:0): media format: w4/r0 (latest is w4/r0), UUID EEB7779D-F419-4CA9-811B-831CAC7233D4, small LPT model [ 954.264767] UBIFS error (ubi1:0 pid 756): ubifs_read_node: bad node type (255 but expected 6) [ 954.367030] UBIFS error (ubi1:0 pid 756): ubifs_read_node: bad node at LEB 0:0, LEB mapping status 1 Signed-off-by: Sheng Yong <shengyong1@huawei.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2015-03-20 10:39:42 +00:00
ubifs: ubifs_tnc_start_commit: Fix OOB in layout_in_gaps Running stress-test test_2 in mtd-utils on ubi device, sometimes we can get following oops message: BUG: unable to handle page fault for address: ffffffff00000140 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 280a067 P4D 280a067 PUD 0 Oops: 0000 [#1] SMP CPU: 0 PID: 60 Comm: kworker/u16:1 Kdump: loaded Not tainted 5.2.0 #13 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.0 -0-ga698c8995f-prebuilt.qemu.org 04/01/2014 Workqueue: writeback wb_workfn (flush-ubifs_0_0) RIP: 0010:rb_next_postorder+0x2e/0xb0 Code: 80 db 03 01 48 85 ff 0f 84 97 00 00 00 48 8b 17 48 83 05 bc 80 db 03 01 48 83 e2 fc 0f 84 82 00 00 00 48 83 05 b2 80 db 03 01 <48> 3b 7a 10 48 89 d0 74 02 f3 c3 48 8b 52 08 48 83 05 a3 80 db 03 RSP: 0018:ffffc90000887758 EFLAGS: 00010202 RAX: ffff888129ae4700 RBX: ffff888138b08400 RCX: 0000000080800001 RDX: ffffffff00000130 RSI: 0000000080800024 RDI: ffff888138b08400 RBP: ffff888138b08400 R08: ffffea0004a6b920 R09: 0000000000000000 R10: ffffc90000887740 R11: 0000000000000001 R12: ffff888128d48000 R13: 0000000000000800 R14: 000000000000011e R15: 00000000000007c8 FS: 0000000000000000(0000) GS:ffff88813ba00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffff00000140 CR3: 000000013789d000 CR4: 00000000000006f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: destroy_old_idx+0x5d/0xa0 [ubifs] ubifs_tnc_start_commit+0x4fe/0x1380 [ubifs] do_commit+0x3eb/0x830 [ubifs] ubifs_run_commit+0xdc/0x1c0 [ubifs] Above Oops are due to the slab-out-of-bounds happened in do-while of function layout_in_gaps indirectly called by ubifs_tnc_start_commit. In function layout_in_gaps, there is a do-while loop placing index nodes into the gaps created by obsolete index nodes in non-empty index LEBs until rest index nodes can totally be placed into pre-allocated empty LEBs. @c->gap_lebs points to a memory area(integer array) which records LEB numbers used by 'in-the-gaps' method. Whenever a fitable index LEB is found, corresponding lnum will be incrementally written into the memory area pointed by @c->gap_lebs. The size ((@c->lst.idx_lebs + 1) * sizeof(int)) of memory area is allocated before do-while loop and can not be changed in the loop. But @c->lst.idx_lebs could be increased by function ubifs_change_lp (called by layout_leb_in_gaps->ubifs_find_dirty_idx_leb->get_idx_gc_leb) during the loop. So, sometimes oob happens when number of cycles in do-while loop exceeds the original value of @c->lst.idx_lebs. See detail in https://bugzilla.kernel.org/show_bug.cgi?id=204229. This patch fixes oob in layout_in_gaps. Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com> Signed-off-by: Richard Weinberger <richard@nod.at>
2019-07-20 14:05:20 +08:00
ubifs: ubifs_tnc_start_commit: Fix OOB in layout_in_gaps Running stress-test test_2 in mtd-utils on ubi device, sometimes we can get following oops message: BUG: unable to handle page fault for address: ffffffff00000140 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 280a067 P4D 280a067 PUD 0 Oops: 0000 [#1] SMP CPU: 0 PID: 60 Comm: kworker/u16:1 Kdump: loaded Not tainted 5.2.0 #13 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.0 -0-ga698c8995f-prebuilt.qemu.org 04/01/2014 Workqueue: writeback wb_workfn (flush-ubifs_0_0) RIP: 0010:rb_next_postorder+0x2e/0xb0 Code: 80 db 03 01 48 85 ff 0f 84 97 00 00 00 48 8b 17 48 83 05 bc 80 db 03 01 48 83 e2 fc 0f 84 82 00 00 00 48 83 05 b2 80 db 03 01 <48> 3b 7a 10 48 89 d0 74 02 f3 c3 48 8b 52 08 48 83 05 a3 80 db 03 RSP: 0018:ffffc90000887758 EFLAGS: 00010202 RAX: ffff888129ae4700 RBX: ffff888138b08400 RCX: 0000000080800001 RDX: ffffffff00000130 RSI: 0000000080800024 RDI: ffff888138b08400 RBP: ffff888138b08400 R08: ffffea0004a6b920 R09: 0000000000000000 R10: ffffc90000887740 R11: 0000000000000001 R12: ffff888128d48000 R13: 0000000000000800 R14: 000000000000011e R15: 00000000000007c8 FS: 0000000000000000(0000) GS:ffff88813ba00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffff00000140 CR3: 000000013789d000 CR4: 00000000000006f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: destroy_old_idx+0x5d/0xa0 [ubifs] ubifs_tnc_start_commit+0x4fe/0x1380 [ubifs] do_commit+0x3eb/0x830 [ubifs] ubifs_run_commit+0xdc/0x1c0 [ubifs] Above Oops are due to the slab-out-of-bounds happened in do-while of function layout_in_gaps indirectly called by ubifs_tnc_start_commit. In function layout_in_gaps, there is a do-while loop placing index nodes into the gaps created by obsolete index nodes in non-empty index LEBs until rest index nodes can totally be placed into pre-allocated empty LEBs. @c->gap_lebs points to a memory area(integer array) which records LEB numbers used by 'in-the-gaps' method. Whenever a fitable index LEB is found, corresponding lnum will be incrementally written into the memory area pointed by @c->gap_lebs. The size ((@c->lst.idx_lebs + 1) * sizeof(int)) of memory area is allocated before do-while loop and can not be changed in the loop. But @c->lst.idx_lebs could be increased by function ubifs_change_lp (called by layout_leb_in_gaps->ubifs_find_dirty_idx_leb->get_idx_gc_leb) during the loop. So, sometimes oob happens when number of cycles in do-while loop exceeds the original value of @c->lst.idx_lebs. See detail in https://bugzilla.kernel.org/show_bug.cgi?id=204229. This patch fixes oob in layout_in_gaps. Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com> Signed-off-by: Richard Weinberger <richard@nod.at>
2019-07-20 14:05:20 +08:00
UBIFS: extend debug/message capabilities In the case where we have more than one volumes on different UBI devices, it may be not that easy to tell which volume prints the messages. Add ubi number and volume id in ubifs_msg/warn/error to help debug. These two values are passed by struct ubifs_info. For those where ubifs_info is not initialized yet, ubifs_* is replaced by pr_*. For those where ubifs_info is not avaliable, ubifs_info is passed to the calling function as a const parameter. The output looks like, [ 95.444879] UBIFS (ubi0:1): background thread "ubifs_bgt0_1" started, PID 696 [ 95.484688] UBIFS (ubi0:1): UBIFS: mounted UBI device 0, volume 1, name "test1" [ 95.484694] UBIFS (ubi0:1): LEB size: 126976 bytes (124 KiB), min./max. I/O unit sizes: 2048 bytes/2048 bytes [ 95.484699] UBIFS (ubi0:1): FS size: 30220288 bytes (28 MiB, 238 LEBs), journal size 1523712 bytes (1 MiB, 12 LEBs) [ 95.484703] UBIFS (ubi0:1): reserved for root: 1427378 bytes (1393 KiB) [ 95.484709] UBIFS (ubi0:1): media format: w4/r0 (latest is w4/r0), UUID 40DFFC0E-70BE-4193-8905-F7D6DFE60B17, small LPT model [ 95.489875] UBIFS (ubi1:0): background thread "ubifs_bgt1_0" started, PID 699 [ 95.529713] UBIFS (ubi1:0): UBIFS: mounted UBI device 1, volume 0, name "test2" [ 95.529718] UBIFS (ubi1:0): LEB size: 126976 bytes (124 KiB), min./max. I/O unit sizes: 2048 bytes/2048 bytes [ 95.529724] UBIFS (ubi1:0): FS size: 19808256 bytes (18 MiB, 156 LEBs), journal size 1015809 bytes (0 MiB, 8 LEBs) [ 95.529727] UBIFS (ubi1:0): reserved for root: 935592 bytes (913 KiB) [ 95.529733] UBIFS (ubi1:0): media format: w4/r0 (latest is w4/r0), UUID EEB7779D-F419-4CA9-811B-831CAC7233D4, small LPT model [ 954.264767] UBIFS error (ubi1:0 pid 756): ubifs_read_node: bad node type (255 but expected 6) [ 954.367030] UBIFS error (ubi1:0 pid 756): ubifs_read_node: bad node at LEB 0:0, LEB mapping status 1 Signed-off-by: Sheng Yong <shengyong1@huawei.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2015-03-20 10:39:42 +00:00
ubifs: authentication: Fix use-after-free in ubifs_tnc_end_commit After an insertion in TNC, the tree might split and cause a node to change its `znode->parent`. A further deletion of other nodes in the tree (which also could free the nodes), the aforementioned node's `znode->cparent` could still point to a freed node. This `znode->cparent` may not be updated when getting nodes to commit in `ubifs_tnc_start_commit()`. This could then trigger a use-after-free when accessing the `znode->cparent` in `write_index()` in `ubifs_tnc_end_commit()`. This can be triggered by running rm -f /etc/test-file.bin dd if=/dev/urandom of=/etc/test-file.bin bs=1M count=60 conv=fsync in a loop, and with `CONFIG_UBIFS_FS_AUTHENTICATION`. KASAN then reports: BUG: KASAN: use-after-free in ubifs_tnc_end_commit+0xa5c/0x1950 Write of size 32 at addr ffffff800a3af86c by task ubifs_bgt0_20/153 Call trace: dump_backtrace+0x0/0x340 show_stack+0x18/0x24 dump_stack_lvl+0x9c/0xbc print_address_description.constprop.0+0x74/0x2b0 kasan_report+0x1d8/0x1f0 kasan_check_range+0xf8/0x1a0 memcpy+0x84/0xf4 ubifs_tnc_end_commit+0xa5c/0x1950 do_commit+0x4e0/0x1340 ubifs_bg_thread+0x234/0x2e0 kthread+0x36c/0x410 ret_from_fork+0x10/0x20 Allocated by task 401: kasan_save_stack+0x38/0x70 __kasan_kmalloc+0x8c/0xd0 __kmalloc+0x34c/0x5bc tnc_insert+0x140/0x16a4 ubifs_tnc_add+0x370/0x52c ubifs_jnl_write_data+0x5d8/0x870 do_writepage+0x36c/0x510 ubifs_writepage+0x190/0x4dc __writepage+0x58/0x154 write_cache_pages+0x394/0x830 do_writepages+0x1f0/0x5b0 filemap_fdatawrite_wbc+0x170/0x25c file_write_and_wait_range+0x140/0x190 ubifs_fsync+0xe8/0x290 vfs_fsync_range+0xc0/0x1e4 do_fsync+0x40/0x90 __arm64_sys_fsync+0x34/0x50 invoke_syscall.constprop.0+0xa8/0x260 do_el0_svc+0xc8/0x1f0 el0_svc+0x34/0x70 el0t_64_sync_handler+0x108/0x114 el0t_64_sync+0x1a4/0x1a8 Freed by task 403: kasan_save_stack+0x38/0x70 kasan_set_track+0x28/0x40 kasan_set_free_info+0x28/0x4c __kasan_slab_free+0xd4/0x13c kfree+0xc4/0x3a0 tnc_delete+0x3f4/0xe40 ubifs_tnc_remove_range+0x368/0x73c ubifs_tnc_remove_ino+0x29c/0x2e0 ubifs_jnl_delete_inode+0x150/0x260 ubifs_evict_inode+0x1d4/0x2e4 evict+0x1c8/0x450 iput+0x2a0/0x3c4 do_unlinkat+0x2cc/0x490 __arm64_sys_unlinkat+0x90/0x100 invoke_syscall.constprop.0+0xa8/0x260 do_el0_svc+0xc8/0x1f0 el0_svc+0x34/0x70 el0t_64_sync_handler+0x108/0x114 el0t_64_sync+0x1a4/0x1a8 The offending `memcpy()` in `ubifs_copy_hash()` has a use-after-free when a node becomes root in TNC but still has a `cparent` to an already freed node. More specifically, consider the following TNC: zroot / / zp1 / / zn Inserting a new node `zn_new` with a key smaller then `zn` will trigger a split in `tnc_insert()` if `zp1` is full: zroot / \ / \ zp1 zp2 / \ / \ zn_new zn `zn->parent` has now been moved to `zp2`, *but* `zn->cparent` still points to `zp1`. Now, consider a removal of all the nodes _except_ `zn`. Just when `tnc_delete()` is about to delete `zroot` and `zp2`: zroot \ \ zp2 \ \ zn `zroot` and `zp2` get freed and the tree collapses: zn `zn` now becomes the new `zroot`. `get_znodes_to_commit()` will now only find `zn`, the new `zroot`, and `write_index()` will check its `znode->cparent` that wrongly points to the already freed `zp1`. `ubifs_copy_hash()` thus gets wrongly called with `znode->cparent->zbranch[znode->iip].hash` that triggers the use-after-free! Fix this by explicitly setting `znode->cparent` to `NULL` in `get_znodes_to_commit()` for the root node. The search for the dirty nodes is bottom-up in the tree. Thus, when `find_next_dirty(znode)` returns NULL, the current `znode` _is_ the root node. Add an assert for this. Fixes: 16a26b20d2af ("ubifs: authentication: Add hashes to index nodes") Tested-by: Waqar Hameed <waqar.hameed@axis.com> Co-developed-by: Zhihao Cheng <chengzhihao1@huawei.com> Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com> Signed-off-by: Waqar Hameed <waqar.hameed@axis.com> Reviewed-by: Zhihao Cheng <chengzhihao1@huawei.com> Signed-off-by: Richard Weinberger <richard@nod.at>
2024-10-09 16:46:59 +02:00
UBIFS: extend debug/message capabilities In the case where we have more than one volumes on different UBI devices, it may be not that easy to tell which volume prints the messages. Add ubi number and volume id in ubifs_msg/warn/error to help debug. These two values are passed by struct ubifs_info. For those where ubifs_info is not initialized yet, ubifs_* is replaced by pr_*. For those where ubifs_info is not avaliable, ubifs_info is passed to the calling function as a const parameter. The output looks like, [ 95.444879] UBIFS (ubi0:1): background thread "ubifs_bgt0_1" started, PID 696 [ 95.484688] UBIFS (ubi0:1): UBIFS: mounted UBI device 0, volume 1, name "test1" [ 95.484694] UBIFS (ubi0:1): LEB size: 126976 bytes (124 KiB), min./max. I/O unit sizes: 2048 bytes/2048 bytes [ 95.484699] UBIFS (ubi0:1): FS size: 30220288 bytes (28 MiB, 238 LEBs), journal size 1523712 bytes (1 MiB, 12 LEBs) [ 95.484703] UBIFS (ubi0:1): reserved for root: 1427378 bytes (1393 KiB) [ 95.484709] UBIFS (ubi0:1): media format: w4/r0 (latest is w4/r0), UUID 40DFFC0E-70BE-4193-8905-F7D6DFE60B17, small LPT model [ 95.489875] UBIFS (ubi1:0): background thread "ubifs_bgt1_0" started, PID 699 [ 95.529713] UBIFS (ubi1:0): UBIFS: mounted UBI device 1, volume 0, name "test2" [ 95.529718] UBIFS (ubi1:0): LEB size: 126976 bytes (124 KiB), min./max. I/O unit sizes: 2048 bytes/2048 bytes [ 95.529724] UBIFS (ubi1:0): FS size: 19808256 bytes (18 MiB, 156 LEBs), journal size 1015809 bytes (0 MiB, 8 LEBs) [ 95.529727] UBIFS (ubi1:0): reserved for root: 935592 bytes (913 KiB) [ 95.529733] UBIFS (ubi1:0): media format: w4/r0 (latest is w4/r0), UUID EEB7779D-F419-4CA9-811B-831CAC7233D4, small LPT model [ 954.264767] UBIFS error (ubi1:0 pid 756): ubifs_read_node: bad node type (255 but expected 6) [ 954.367030] UBIFS error (ubi1:0 pid 756): ubifs_read_node: bad node at LEB 0:0, LEB mapping status 1 Signed-off-by: Sheng Yong <shengyong1@huawei.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2015-03-20 10:39:42 +00:00
UBIFS: extend debug/message capabilities In the case where we have more than one volumes on different UBI devices, it may be not that easy to tell which volume prints the messages. Add ubi number and volume id in ubifs_msg/warn/error to help debug. These two values are passed by struct ubifs_info. For those where ubifs_info is not initialized yet, ubifs_* is replaced by pr_*. For those where ubifs_info is not avaliable, ubifs_info is passed to the calling function as a const parameter. The output looks like, [ 95.444879] UBIFS (ubi0:1): background thread "ubifs_bgt0_1" started, PID 696 [ 95.484688] UBIFS (ubi0:1): UBIFS: mounted UBI device 0, volume 1, name "test1" [ 95.484694] UBIFS (ubi0:1): LEB size: 126976 bytes (124 KiB), min./max. I/O unit sizes: 2048 bytes/2048 bytes [ 95.484699] UBIFS (ubi0:1): FS size: 30220288 bytes (28 MiB, 238 LEBs), journal size 1523712 bytes (1 MiB, 12 LEBs) [ 95.484703] UBIFS (ubi0:1): reserved for root: 1427378 bytes (1393 KiB) [ 95.484709] UBIFS (ubi0:1): media format: w4/r0 (latest is w4/r0), UUID 40DFFC0E-70BE-4193-8905-F7D6DFE60B17, small LPT model [ 95.489875] UBIFS (ubi1:0): background thread "ubifs_bgt1_0" started, PID 699 [ 95.529713] UBIFS (ubi1:0): UBIFS: mounted UBI device 1, volume 0, name "test2" [ 95.529718] UBIFS (ubi1:0): LEB size: 126976 bytes (124 KiB), min./max. I/O unit sizes: 2048 bytes/2048 bytes [ 95.529724] UBIFS (ubi1:0): FS size: 19808256 bytes (18 MiB, 156 LEBs), journal size 1015809 bytes (0 MiB, 8 LEBs) [ 95.529727] UBIFS (ubi1:0): reserved for root: 935592 bytes (913 KiB) [ 95.529733] UBIFS (ubi1:0): media format: w4/r0 (latest is w4/r0), UUID EEB7779D-F419-4CA9-811B-831CAC7233D4, small LPT model [ 954.264767] UBIFS error (ubi1:0 pid 756): ubifs_read_node: bad node type (255 but expected 6) [ 954.367030] UBIFS error (ubi1:0 pid 756): ubifs_read_node: bad node at LEB 0:0, LEB mapping status 1 Signed-off-by: Sheng Yong <shengyong1@huawei.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2015-03-20 10:39:42 +00:00
UBIFS: extend debug/message capabilities In the case where we have more than one volumes on different UBI devices, it may be not that easy to tell which volume prints the messages. Add ubi number and volume id in ubifs_msg/warn/error to help debug. These two values are passed by struct ubifs_info. For those where ubifs_info is not initialized yet, ubifs_* is replaced by pr_*. For those where ubifs_info is not avaliable, ubifs_info is passed to the calling function as a const parameter. The output looks like, [ 95.444879] UBIFS (ubi0:1): background thread "ubifs_bgt0_1" started, PID 696 [ 95.484688] UBIFS (ubi0:1): UBIFS: mounted UBI device 0, volume 1, name "test1" [ 95.484694] UBIFS (ubi0:1): LEB size: 126976 bytes (124 KiB), min./max. I/O unit sizes: 2048 bytes/2048 bytes [ 95.484699] UBIFS (ubi0:1): FS size: 30220288 bytes (28 MiB, 238 LEBs), journal size 1523712 bytes (1 MiB, 12 LEBs) [ 95.484703] UBIFS (ubi0:1): reserved for root: 1427378 bytes (1393 KiB) [ 95.484709] UBIFS (ubi0:1): media format: w4/r0 (latest is w4/r0), UUID 40DFFC0E-70BE-4193-8905-F7D6DFE60B17, small LPT model [ 95.489875] UBIFS (ubi1:0): background thread "ubifs_bgt1_0" started, PID 699 [ 95.529713] UBIFS (ubi1:0): UBIFS: mounted UBI device 1, volume 0, name "test2" [ 95.529718] UBIFS (ubi1:0): LEB size: 126976 bytes (124 KiB), min./max. I/O unit sizes: 2048 bytes/2048 bytes [ 95.529724] UBIFS (ubi1:0): FS size: 19808256 bytes (18 MiB, 156 LEBs), journal size 1015809 bytes (0 MiB, 8 LEBs) [ 95.529727] UBIFS (ubi1:0): reserved for root: 935592 bytes (913 KiB) [ 95.529733] UBIFS (ubi1:0): media format: w4/r0 (latest is w4/r0), UUID EEB7779D-F419-4CA9-811B-831CAC7233D4, small LPT model [ 954.264767] UBIFS error (ubi1:0 pid 756): ubifs_read_node: bad node type (255 but expected 6) [ 954.367030] UBIFS error (ubi1:0 pid 756): ubifs_read_node: bad node at LEB 0:0, LEB mapping status 1 Signed-off-by: Sheng Yong <shengyong1@huawei.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2015-03-20 10:39:42 +00:00