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6aa446c05a
Fixes the following: [ 17.607394] kernel BUG at fs/bcachefs/reflink.c:261! [ 17.608316] Oops: invalid opcode: 0000 [#1] PREEMPT SMP NOPTI [ 17.608485] CPU: 0 UID: 0 PID: 564 Comm: bch-rebalance/3 Tainted: G OE 6.14.0-rc6-arch1-gfcb0bd9609d2 #7 0efd7a8f4a00afeb2c5fb6e7ecb1aec8ddcbb1e1 [ 17.608616] Tainted: [O]=OOT_MODULE, [E]=UNSIGNED_MODULE [ 17.608736] Hardware name: Micro-Star International Co., Ltd. MS-7D75/MAG B650 TOMAHAWK WIFI (MS-7D75), BIOS 1.74 08/01/2023 [ 17.608855] RIP: 0010:bch2_lookup_indirect_extent+0x252/0x290 [bcachefs] [ 17.609006] Code: 00 00 00 00 e8 7f 51 f5 ff 89 c3 85 c0 74 52 48 8b 7d b0 4c 89 ee e8 4d 4b f4 ff 48 63 d3 48 89 d0 31 d2 e9 2e ff ff ff 0f 0b <0f> 0b 48 8b 7d b0 4c 89 ee 48 89 55 a8 e8 2c 4b f4 ff 4c 8b 55 a8 [ 17.609136] RSP: 0018:ffffa3714455f850 EFLAGS: 00010246 [ 17.609261] RAX: 0000000000000080 RBX: ffff895891098790 RCX: 0000000000000000 [ 17.609387] RDX: 0000000000000080 RSI: ffffa3714455fa90 RDI: ffff895889550000 [ 17.609511] RBP: ffffa3714455f8c0 R08: ffff895891098790 R09: 0000000000000001 [ 17.609637] R10: ffffa3714455f8d8 R11: ffffa3714455f950 R12: ffffa3714455fa58 [ 17.609763] R13: ffff895891098790 R14: ffffa3714455fa58 R15: ffff895889550000 [ 17.609888] FS: 0000000000000000(0000) GS:ffff896757c00000(0000) knlGS:0000000000000000 [ 17.610015] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 17.610143] CR2: 0000716b8cda2750 CR3: 0000000914e22000 CR4: 0000000000f50ef0 [ 17.610272] PKRU: 55555554 [ 17.610403] Call Trace: [ 17.610535] <TASK> [ 17.610662] ? __die_body.cold+0x19/0x27 [ 17.610791] ? die+0x2e/0x50 [ 17.610918] ? do_trap+0xca/0x110 [ 17.611049] ? do_error_trap+0x6a/0x90 [ 17.611178] ? bch2_lookup_indirect_extent+0x252/0x290 [bcachefs c42b95c23facdfe11d39755520127cd771dddec2] [ 17.611331] ? exc_invalid_op+0x50/0x70 [ 17.611468] ? bch2_lookup_indirect_extent+0x252/0x290 [bcachefs c42b95c23facdfe11d39755520127cd771dddec2] [ 17.611620] ? asm_exc_invalid_op+0x1a/0x20 [ 17.611757] ? bch2_lookup_indirect_extent+0x252/0x290 [bcachefs c42b95c23facdfe11d39755520127cd771dddec2] [ 17.611911] ? bch2_move_data_btree+0x58a/0x6c0 [bcachefs c42b95c23facdfe11d39755520127cd771dddec2] [ 17.612084] bch2_move_data_btree+0x58a/0x6c0 [bcachefs c42b95c23facdfe11d39755520127cd771dddec2] [ 17.612256] ? __pfx_rebalance_pred+0x10/0x10 [bcachefs c42b95c23facdfe11d39755520127cd771dddec2] [ 17.612431] ? bch2_move_extent+0x3d7/0x6e0 [bcachefs c42b95c23facdfe11d39755520127cd771dddec2] [ 17.612607] ? __bch2_move_data+0xea/0x200 [bcachefs c42b95c23facdfe11d39755520127cd771dddec2] [ 17.612782] __bch2_move_data+0xea/0x200 [bcachefs c42b95c23facdfe11d39755520127cd771dddec2] [ 17.612959] ? __pfx_rebalance_pred+0x10/0x10 [bcachefs c42b95c23facdfe11d39755520127cd771dddec2] [ 17.613149] do_rebalance+0x517/0x8d0 [bcachefs c42b95c23facdfe11d39755520127cd771dddec2] [ 17.613342] ? local_clock_noinstr+0xd/0xd0 [ 17.613518] ? local_clock+0x15/0x30 [ 17.613693] ? __bch2_trans_get+0x152/0x300 [bcachefs c42b95c23facdfe11d39755520127cd771dddec2] [ 17.613890] ? __pfx_bch2_rebalance_thread+0x10/0x10 [bcachefs c42b95c23facdfe11d39755520127cd771dddec2] [ 17.614090] bch2_rebalance_thread+0x66/0xb0 [bcachefs c42b95c23facdfe11d39755520127cd771dddec2] The offset_into_extent bit was copied from the read path, but it's unnecessary here, where we always want to read and move the entire indirect extent, and it causes the assertion pop - because we're using a non-extents iterator, which always points to the end of the reflink pointer. Reported-by: Maël Kerbiriou <mael.kerbiriou@free.fr> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.