On 2019/11/9 上午11:45, Andreas Färber wrote: > Hello, > > On arm64 I'm seeing a regression between next-20191031 and next-20191105 > that breaks boot from my btrfs rootfs: next-20191105 and later oopses on > found->lock, or with CONFIG_BTRFS_ASSERT asserts on a NULL "found" > variable in btrfs_update_space_info(). > > According to git-blame that code hasn't changed in months, and I didn't > spot an obvious cause among the fs/btrfs/ commis between those two tags. It looks like caused by "btrfs: block-group: Refactor btrfs_read_block_groups()". Due to another refactor, there are conflicts in that patch and is not resolved properly. Please try David's latest misc-next branch, which includes the proper rebased refactor. e38b826dc9f0214517b4204eb9b726874145c9ee (david/misc-next) Thanks, Qu > > [ 3.512280] sd 0:0:0:0: [sda] Attached SCSI disk > [ 3.520043] BTRFS: device label rootfs devid 1 transid 490 /dev/root > scanned by swapper/0 (1) > [ 3.529701] BTRFS info (device sda3): disk space caching is enabled > [ 3.536182] BTRFS info (device sda3): has skinny extents > [ 3.547836] assertion failed: found, in fs/btrfs/space-info.c:124 > [ 3.554171] ------------[ cut here ]------------ > [ 3.558923] kernel BUG at fs/btrfs/ctree.h:3118! > [ 3.563673] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP > [ 3.569312] Modules linked in: > [ 3.572465] CPU: 0 PID: 1 Comm: swapper/0 Not tainted > 5.4.0-rc6-next-20191105+ #110 > [ 3.580335] Hardware name: Zidoo X9S (DT) > [ 3.584463] pstate: 40000005 (nZcv daif -PAN -UAO) > [ 3.589401] pc : assfail.constprop.0+0x24/0x28 > [ 3.593975] lr : assfail.constprop.0+0x24/0x28 > [ 3.598543] sp : ffff80001002b7d0 > [ 3.601954] x29: ffff80001002b7d0 x28: 0000000000000000 > [ 3.607420] x27: 0000000000000001 x26: 0000000000000001 > [ 3.612885] x25: 0000000000000000 x24: ffff80001002b890 > [ 3.618350] x23: 0000000000000000 x22: ffff00007c7d0000 > [ 3.623815] x21: 0000000000800000 x20: 0000000000000001 > [ 3.629281] x19: 0000000000000000 x18: 0000000000000000 > [ 3.634746] x17: 000000009b04d1f2 x16: 0000000000000014 > [ 3.640211] x15: 000000000000000a x14: 0720072007200720 > [ 3.645676] x13: 0720072007200720 x12: 0720072007200720 > [ 3.651141] x11: 073407320731073a x10: 0763072e076f0766 > [ 3.656606] x9 : 076e0769072d0765 x8 : 0000000000000000 > [ 3.662071] x7 : 0000000000000007 x6 : 0000000000000000 > [ 3.667536] x5 : 0000000000000000 x4 : 0000000000000000 > [ 3.673000] x3 : 0000000000000000 x2 : 00e5bec8376cfb00 > [ 3.678465] x1 : 0000000000000000 x0 : 0000000000000035 > [ 3.683930] Call trace: > [ 3.686455] assfail.constprop.0+0x24/0x28 > [ 3.690672] btrfs_update_space_info+0x5c/0xe4 > [ 3.695248] btrfs_read_block_groups+0x470/0x620 > [ 3.700001] open_ctree+0x1500/0x1ae8 > [ 3.703775] btrfs_mount_root+0x38c/0x450 > [ 3.707904] legacy_get_tree+0x2c/0x54 > [ 3.711766] vfs_get_tree+0x28/0xd4 > [ 3.715361] fc_mount+0x14/0x44 > [ 3.718599] vfs_kern_mount.part.0+0x74/0x98 > [ 3.722994] vfs_kern_mount+0x10/0x20 > [ 3.726767] btrfs_mount+0x624/0x6cc > [ 3.730450] legacy_get_tree+0x2c/0x54 > [ 3.734312] vfs_get_tree+0x28/0xd4 > [ 3.737904] do_mount+0x52c/0x728 > [ 3.741318] ksys_mount+0xb4/0xc4 > [ 3.744734] mount_block_root+0x12c/0x2d8 > [ 3.748861] mount_root+0x7c/0x88 > [ 3.752275] prepare_namespace+0x15c/0x16c > [ 3.756491] kernel_init_freeable+0x1e0/0x224 > [ 3.760977] kernel_init+0x10/0xf8 > [ 3.764483] ret_from_fork+0x10/0x18 > [ 3.768171] Code: 913f6842 b0003260 91337800 97f6e0d0 (d4210000) > [ 3.774446] ---[ end trace 21d95ef2db268f8d ]--- > [ 3.779221] note: swapper/0[1] exited with preempt_count 1 > [ 3.784910] Kernel panic - not syncing: Attempted to kill init! > exitcode=0x0000000b > [ 3.792786] SMP: stopping secondary CPUs > [ 3.796824] Kernel Offset: disabled > [ 3.800415] CPU features: 0x00002,20002004 > [ 3.804626] Memory Limit: none > [ 3.807780] ---[ end Kernel panic - not syncing: Attempted to kill > init! exitcode=0x0000000b ]--- > > Kindly revert the tree to some working state again. > > Thanks, > Andreas >
Attachment:
signature.asc
Description: OpenPGP digital signature
