diff --git a/patches.suse/dm-call-the-resume-method-on-internal-suspend-65e8.patch b/patches.suse/dm-call-the-resume-method-on-internal-suspend-65e8.patch new file mode 100644 index 0000000..ac36ed5 --- /dev/null +++ b/patches.suse/dm-call-the-resume-method-on-internal-suspend-65e8.patch @@ -0,0 +1,123 @@ +From 65e8fbde64520001abf1c8d0e573561b4746ef38 Mon Sep 17 00:00:00 2001 +From: Mikulas Patocka +Date: Mon, 11 Mar 2024 15:06:39 +0100 +Subject: [PATCH] dm: call the resume method on internal suspend +Git-commit: 65e8fbde64520001abf1c8d0e573561b4746ef38 +Patch-mainline: v6.9-rc1 +References: git-fixes + +There is this reported crash when experimenting with the lvm2 testsuite. +The list corruption is caused by the fact that the postsuspend and resume +methods were not paired correctly; there were two consecutive calls to the +origin_postsuspend function. The second call attempts to remove the +"hash_list" entry from a list, while it was already removed by the first +call. + +Fix __dm_internal_resume so that it calls the preresume and resume +methods of the table's targets. + +If a preresume method of some target fails, we are in a tricky situation. +We can't return an error because dm_internal_resume isn't supposed to +return errors. We can't return success, because then the "resume" and +"postsuspend" methods would not be paired correctly. So, we set the +DMF_SUSPENDED flag and we fake normal suspend - it may confuse userspace +tools, but it won't cause a kernel crash. + +Signed-off-by: Coly Li + +------------[ cut here ]------------ +kernel BUG at lib/list_debug.c:56! +invalid opcode: 0000 [#1] PREEMPT SMP +CPU: 1 PID: 8343 Comm: dmsetup Not tainted 6.8.0-rc6 #4 +Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-2 04/01/2014 +RIP: 0010:__list_del_entry_valid_or_report+0x77/0xc0 + +RSP: 0018:ffff8881b831bcc0 EFLAGS: 00010282 +RAX: 000000000000004e RBX: ffff888143b6eb80 RCX: 0000000000000000 +RDX: 0000000000000001 RSI: ffffffff819053d0 RDI: 00000000ffffffff +RBP: ffff8881b83a3400 R08: 00000000fffeffff R09: 0000000000000058 +R10: 0000000000000000 R11: ffffffff81a24080 R12: 0000000000000001 +R13: ffff88814538e000 R14: ffff888143bc6dc0 R15: ffffffffa02e4bb0 +FS: 00000000f7c0f780(0000) GS:ffff8893f0a40000(0000) knlGS:0000000000000000 +CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 +CR2: 0000000057fb5000 CR3: 0000000143474000 CR4: 00000000000006b0 +Call Trace: + + ? die+0x2d/0x80 + ? do_trap+0xeb/0xf0 + ? __list_del_entry_valid_or_report+0x77/0xc0 + ? do_error_trap+0x60/0x80 + ? __list_del_entry_valid_or_report+0x77/0xc0 + ? exc_invalid_op+0x49/0x60 + ? __list_del_entry_valid_or_report+0x77/0xc0 + ? asm_exc_invalid_op+0x16/0x20 + ? table_deps+0x1b0/0x1b0 [dm_mod] + ? __list_del_entry_valid_or_report+0x77/0xc0 + origin_postsuspend+0x1a/0x50 [dm_snapshot] + dm_table_postsuspend_targets+0x34/0x50 [dm_mod] + dm_suspend+0xd8/0xf0 [dm_mod] + dev_suspend+0x1f2/0x2f0 [dm_mod] + ? table_deps+0x1b0/0x1b0 [dm_mod] + ctl_ioctl+0x300/0x5f0 [dm_mod] + dm_compat_ctl_ioctl+0x7/0x10 [dm_mod] + __x64_compat_sys_ioctl+0x104/0x170 + do_syscall_64+0x184/0x1b0 + entry_SYSCALL_64_after_hwframe+0x46/0x4e +RIP: 0033:0xf7e6aead + +---[ end trace 0000000000000000 ]--- + +Fixes: ffcc39364160 ("dm: enhance internal suspend and resume interface") +Signed-off-by: Mikulas Patocka +Signed-off-by: Mike Snitzer +--- + drivers/md/dm.c | 26 ++++++++++++++++++++------ + 1 file changed, 20 insertions(+), 6 deletions(-) + +diff --git a/drivers/md/dm.c b/drivers/md/dm.c +index 1bed115a7e8e..f1fe8828e1de 100644 +--- a/drivers/md/dm.c ++++ b/drivers/md/dm.c +@@ -2945,6 +2945,9 @@ static void __dm_internal_suspend(struct mapped_device *md, unsigned int suspend + + static void __dm_internal_resume(struct mapped_device *md) + { ++ int r; ++ struct dm_table *map; ++ + BUG_ON(!md->internal_suspend_count); + + if (--md->internal_suspend_count) +@@ -2953,12 +2956,23 @@ static void __dm_internal_resume(struct mapped_device *md) + if (dm_suspended_md(md)) + goto done; /* resume from nested suspend */ + +- /* +- * NOTE: existing callers don't need to call dm_table_resume_targets +- * (which may fail -- so best to avoid it for now by passing NULL map) +- */ +- (void) __dm_resume(md, NULL); +- ++ map = rcu_dereference_protected(md->map, lockdep_is_held(&md->suspend_lock)); ++ r = __dm_resume(md, map); ++ if (r) { ++ /* ++ * If a preresume method of some target failed, we are in a ++ * tricky situation. We can't return an error to the caller. We ++ * can't fake success because then the "resume" and ++ * "postsuspend" methods would not be paired correctly, and it ++ * would break various targets, for example it would cause list ++ * corruption in the "origin" target. ++ * ++ * So, we fake normal suspend here, to make sure that the ++ * "resume" and "postsuspend" methods will be paired correctly. ++ */ ++ DMERR("Preresume method failed: %d", r); ++ set_bit(DMF_SUSPENDED, &md->flags); ++ } + done: + clear_bit(DMF_SUSPENDED_INTERNALLY, &md->flags); + smp_mb__after_atomic(); +-- +2.35.3 + diff --git a/series.conf b/series.conf index 90a7f36..fb250ce 100644 --- a/series.conf +++ b/series.conf @@ -45905,6 +45905,7 @@ patches.suse/0002-iommu-vt-d-Don-t-issue-ATS-Invalidation-request-when.patch patches.suse/0001-iommu-amd-Mark-interrupt-as-managed.patch patches.suse/dm-raid-fix-false-positive-for-requeue-needed-during-b25b.patch + patches.suse/dm-call-the-resume-method-on-internal-suspend-65e8.patch patches.suse/pwm-mediatek-Update-kernel-doc-for-struct-pwm_mediat.patch patches.suse/mmc-tmio-avoid-concurrent-runs-of-mmc_request_done.patch patches.suse/mmc-wmt-sdmmc-remove-an-incorrect-release_mem_region.patch