Re: [syzbot] [iomap?] [erofs?] WARNING in iomap_iter (5)

syzbot has bisected this issue to: commit 1d191b4ca51d73699cb127386b95ac152af2b930 Author: Gao Xiang Date: Mon Mar 10 09:54:58 2025 + erofs: implement encoded extent metadata bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1352dd7058 start commit: 02adc1490e6d Merge

[xiang-erofs:dev-test] BUILD SUCCESS ef102dfe9e96a0f3e339e300c608ac441f71e738

9 arc allyesconfiggcc-15.1.0 arc axs103_defconfigclang-21 arc defconfiggcc-15.1.0 arc randconfig-001-20250614gcc-8.5.0 arc randconfig-001-20250615gcc-12.4.0 arc randc

[PATCH] erofs: confirm big pcluster before setting extents

In this case, advise contains Z_EROFS_ADVISE_EXTENTS, Z_EROFS_ADVISE_BIG_PCLUSTER_1, Z_EROFS_ADVISE_BIG_PCLUSTER_2 at the same time, and following 1 and 2 are met, WARN_ON_ONCE(iter->iomap.offset > iter->pos) in iomap_iter_done() is triggered. 1. When Z_EROFS_ADVISE_EXTENTS exists, z_erofs_fill_in

Re: [PATCH] erofs: confirm big pcluster before setting extents

Hi Edward, On 2025/6/15 13:05, Edward Adam Davis wrote: In this case, advise contains Z_EROFS_ADVISE_EXTENTS, Z_EROFS_ADVISE_BIG_PCLUSTER_1, Z_EROFS_ADVISE_BIG_PCLUSTER_2 at the same time, and following 1 and 2 are met, WARN_ON_ONCE(iter->iomap.offset > iter->pos) in iomap_iter_done() is trigger