On 01/26/2017 09:08 AM, Marc Kleine-Budde wrote: > Hello, > > during a "btrfs send | btrfs receive" from a raid1 to a single USB > harddrive the kernel oopsed with: > > [ 9504.261077] Kernel panic - not syncing: corrupted stack end detected > inside scheduler > [ 9504.261077] > [ 9504.270410] CPU: 0 PID: 4016 Comm: btrfs Not tainted 4.8.0-2-armmp #1 > Debian 4.8.15-2 > [ 9504.278229] Hardware name: Allwinner sun7i (A20) Family > [ 9504.283484] [<c0114c2c>] (unwind_backtrace) from [<c010ee5c>] > (show_stack+0x20/0x24) > [ 9504.291230] [<c010ee5c>] (show_stack) from [<c0402f74>] > (dump_stack+0x98/0xac) > [ 9504.298455] [<c0402f74>] (dump_stack) from [<c0266cfc>] (panic+0x100/0x294) > [ 9504.305421] [<c0266cfc>] (panic) from [<c07d8b00>] (schedule+0x0/0xa8) > [ 9504.311949] [<c07d8b00>] (schedule) from [<c07d8b50>] (schedule+0x50/0xa8) > [ 9504.318822] [<c07d8b50>] (schedule) from [<c07dc1b0>] > (schedule_timeout+0x25c/0x3b4) > [ 9504.326562] [<c07dc1b0>] (schedule_timeout) from [<c07d829c>] > (io_schedule_timeout+0xc4/0x13c) > [ 9504.335168] [<c07d829c>] (io_schedule_timeout) from [<c07d95dc>] > (bit_wait_io+0x20/0x6c) > [ 9504.343254] [<c07d95dc>] (bit_wait_io) from [<c07d9054>] > (__wait_on_bit+0x94/0xc8) > [ 9504.350820] [<c07d9054>] (__wait_on_bit) from [<c0268414>] > (wait_on_page_bit+0xf0/0x10c) > [ 9504.359232] [<c0268414>] (wait_on_page_bit) from [<bf3de718>] > (read_extent_buffer_pages+0x354/0x3bc [btrfs]) > [ 9504.369333] [<bf3de718>] (read_extent_buffer_pages [btrfs]) from > [<bf3a8eec>] (btree_read_extent_buffer_pages.constprop.8+0xdc/0x150 [btrfs]) > [ 9504.382256] [<bf3a8eec>] (btree_read_extent_buffer_pages.constprop.8 > [btrfs]) from [<bf3a958c>] (read_tree_block+0x3c/0x58 [btrfs]) > [ 9504.394303] [<bf3a958c>] (read_tree_block [btrfs]) from [<bf3831ec>] > (read_block_for_search+0x14c/0x388 [btrfs]) > [ 9504.404699] [<bf3831ec>] (read_block_for_search [btrfs]) from [<bf385238>] > (btrfs_search_slot+0x4d0/0x99c [btrfs]) > [ 9504.415269] [<bf385238>] (btrfs_search_slot [btrfs]) from [<bf3a3470>] > (btrfs_lookup_csum+0x7c/0x1a8 [btrfs]) > [ 9504.425406] [<bf3a3470>] (btrfs_lookup_csum [btrfs]) from [<bf3a38fc>] > (__btrfs_lookup_bio_sums+0x340/0x654 [btrfs]) > [ 9504.436150] [<bf3a38fc>] (__btrfs_lookup_bio_sums [btrfs]) from > [<bf3a40a4>] (btrfs_lookup_bio_sums+0x34/0x3c [btrfs]) > [ 9504.447069] [<bf3a40a4>] (btrfs_lookup_bio_sums [btrfs]) from [<bf3b50bc>] > (btrfs_submit_bio_hook+0xc4/0x210 [btrfs]) > [ 9504.457905] [<bf3b50bc>] (btrfs_submit_bio_hook [btrfs]) from [<bf3d4ee4>] > (submit_one_bio+0xbc/0xe4 [btrfs]) > [ 9504.468141] [<bf3d4ee4>] (submit_one_bio [btrfs]) from [<bf3da660>] > (submit_extent_page+0xf0/0x234 [btrfs]) > [ 9504.478126] [<bf3da660>] (submit_extent_page [btrfs]) from [<bf3db82c>] > (__do_readpage+0x4a8/0xac4 [btrfs]) > [ 9504.488130] [<bf3db82c>] (__do_readpage [btrfs]) from [<bf3dc334>] > (__extent_readpages.constprop.16+0x3a0/0x3e8 [btrfs]) > [ 9504.499231] [<bf3dc334>] (__extent_readpages.constprop.16 [btrfs]) from > [<bf3dcf14>] (extent_readpages+0x140/0x1e4 [btrfs]) > [ 9504.510591] [<bf3dcf14>] (extent_readpages [btrfs]) from [<bf3b6618>] > (btrfs_readpages+0x30/0x38 [btrfs]) > [ 9504.520278] [<bf3b6618>] (btrfs_readpages [btrfs]) from [<c02795d4>] > (__do_page_cache_readahead+0x1b0/0x28c) > [ 9504.530104] [<c02795d4>] (__do_page_cache_readahead) from [<c02797cc>] > (ondemand_readahead+0x11c/0x220) > [ 9504.539491] [<c02797cc>] (ondemand_readahead) from [<c0279ad0>] > (page_cache_sync_readahead+0x5c/0x7c) > [ 9504.548831] [<c0279ad0>] (page_cache_sync_readahead) from [<bf4353c0>] > (send_extent_data+0x1a8/0x620 [btrfs]) > [ 9504.558978] [<bf4353c0>] (send_extent_data [btrfs]) from [<bf435aac>] > (process_extent+0x274/0x120c [btrfs]) > [ 9504.568949] [<bf435aac>] (process_extent [btrfs]) from [<bf4399d0>] > (changed_cb+0x258/0xb6c [btrfs]) > [ 9504.578314] [<bf4399d0>] (changed_cb [btrfs]) from [<bf43b3cc>] > (btrfs_ioctl_send+0x10e8/0x11cc [btrfs]) > [ 9504.588024] [<bf43b3cc>] (btrfs_ioctl_send [btrfs]) from [<bf3f87d4>] > (btrfs_ioctl+0xdb4/0x270c [btrfs]) > [ 9504.597621] [<bf3f87d4>] (btrfs_ioctl [btrfs]) from [<c02e7f50>] > (do_vfs_ioctl+0xc0/0x990) > [ 9504.605882] [<c02e7f50>] (do_vfs_ioctl) from [<c02e889c>] > (SyS_ioctl+0x7c/0x8c) > [ 9504.613193] [<c02e889c>] (SyS_ioctl) from [<c0109ea0>] > (ret_fast_syscall+0x0/0x3c) > [ 9504.620790] CPU1: stopping > [ 9504.623517] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.8.0-2-armmp #1 > Debian 4.8.15-2 > [ 9504.631423] Hardware name: Allwinner sun7i (A20) Family > [ 9504.636662] [<c0114c2c>] (unwind_backtrace) from [<c010ee5c>] > (show_stack+0x20/0x24) > [ 9504.644408] [<c010ee5c>] (show_stack) from [<c0402f74>] > (dump_stack+0x98/0xac) > [ 9504.651629] [<c0402f74>] (dump_stack) from [<c01126e8>] > (handle_IPI+0x2a4/0x2c4) > [ 9504.659022] [<c01126e8>] (handle_IPI) from [<c01017d0>] > (gic_handle_irq+0x8c/0x90) > [ 9504.666589] [<c01017d0>] (gic_handle_irq) from [<c07dd58c>] > (__irq_svc+0x6c/0x90) > [ 9504.674062] Exception stack(0xee957f48 to 0xee957f90) > [ 9504.679111] 7f40: 00000000 ef6ce478 0038334e c0121380 > ee956000 c0c03658 > [ 9504.687281] 7f60: 10c0387d c0c035ec 00000002 c0c035ec 00000000 ee957fa4 > ee957fa8 ee957f98 > [ 9504.695447] 7f80: c010aa20 c010aa24 60000013 ffffffff > [ 9504.700502] [<c07dd58c>] (__irq_svc) from [<c010aa24>] > (arch_cpu_idle+0x48/0x4c) > [ 9504.707897] [<c010aa24>] (arch_cpu_idle) from [<c0196268>] > (default_idle_call+0x30/0x3c) > [ 9504.715983] [<c0196268>] (default_idle_call) from [<c0196490>] > (cpu_startup_entry+0x21c/0x278) > [ 9504.724590] [<c0196490>] (cpu_startup_entry) from [<c01121d8>] > (secondary_start_kernel+0x15c/0x184) > [ 9504.733628] [<c01121d8>] (secondary_start_kernel) from [<40101e2c>] > (0x40101e2c) > [ 9504.741056] Kernel panic - not syncing: corrupted stack end detected > inside scheduler > [ 9504.741056] > [ 9504.750359] ---[ end Kernel panic - not syncing: corrupted stack end > detected inside scheduler > > The hardware is a sunxi armhf SMP with debian's latest v4.8 kernel > (4.8.15-2).
It's reproduceable with a "btrfs send > /dev/null". Marc -- Pengutronix e.K. | Marc Kleine-Budde | Industrial Linux Solutions | Phone: +49-231-2826-924 | Vertretung West/Dortmund | Fax: +49-5121-206917-5555 | Amtsgericht Hildesheim, HRA 2686 | http://www.pengutronix.de |
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