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charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Am 08.04.22 um 14:24 schrieb Mikhail Gavrilov: > On Fri, 8 Apr 2022 at 16:13, Christian König wrote: > >> I own you a beer. >> >> I still don't know what happens here, but that makes at least a bit more >> sense than a patch which only changes comments :) >> >> Looks like we are missing something here. Can I send you a patch to try >> something later today? > Yes, please feel free to send me a patch for testing. > Please test the attached patch, it just re-introduce the lock without doing much else. And does your branch contain the following patch: commit d18b8eadd83e3d8d63a45f9479478640dbcfca02 Author: Christian König Date:   Wed Feb 23 14:35:31 2022 +0100     drm/amdgpu: install ctx entities with cmpxchg     Since we removed the context lock we need to make sure that not two threads     are trying to install an entity at the same time.     Signed-off-by: Christian König     Fixes: 461fa7b0ac565e ("drm/amdgpu: remove ctx->lock")     Reviewed-by: Andrey Grodzovsky     Signed-off-by: Alex Deucher Thanks, Christian. --------------0k7B5PLwfnhdoEa8AI3ZXC0H Content-Type: text/x-patch; charset=UTF-8; name="0001-drm-amdgpu-partial-revert-remove-ctx-lock.patch" Content-Disposition: attachment; filename="0001-drm-amdgpu-partial-revert-remove-ctx-lock.patch" Content-Transfer-Encoding: base64 RnJvbSBlMmUzOWNiMWE0YTFjN2MwZTNmZjJlNGUwMTg4Mzk0YjBlZGEwYmE2IE1vbiBTZXAgMTcg MDA6MDA6MDAgMjAwMQpGcm9tOiA9P1VURi04P3E/Q2hyaXN0aWFuPTIwSz1DMz1CNm5pZz89IDxj aHJpc3RpYW4ua29lbmlnQGFtZC5jb20+CkRhdGU6IEZyaSwgOCBBcHIgMjAyMiAxNjoyMjo1NSAr MDIwMApTdWJqZWN0OiBbUEFUQ0hdIGRybS9hbWRncHU6IHBhcnRpYWwgcmV2ZXJ0ICJyZW1vdmUg Y3R4LT5sb2NrIgpNSU1FLVZlcnNpb246IDEuMApDb250ZW50LVR5cGU6IHRleHQvcGxhaW47IGNo YXJzZXQ9VVRGLTgKQ29udGVudC1UcmFuc2Zlci1FbmNvZGluZzogOGJpdAoKVGhpcyByZXZlcnRz IGNvbW1pdCA0NjFmYTdiMGFjNTY1ZWYyNWMxZGEwY2VkMzEwMDVkZDQzNzg4M2E3LgoKV2UgYXJl IG1pc3Npbmcgc29tZSBpbnRlciBkZXBlbmRlbmNpZXMgaGVyZS4KClNpZ25lZC1vZmYtYnk6IENo cmlzdGlhbiBLw7ZuaWcgPGNocmlzdGlhbi5rb2VuaWdAYW1kLmNvbT4KLS0tCiBkcml2ZXJzL2dw dS9kcm0vYW1kL2FtZGdwdS9hbWRncHVfY3MuYyAgfCA0ICsrKysKIGRyaXZlcnMvZ3B1L2RybS9h bWQvYW1kZ3B1L2FtZGdwdV9jdHguYyB8IDIgKysKIGRyaXZlcnMvZ3B1L2RybS9hbWQvYW1kZ3B1 L2FtZGdwdV9jdHguaCB8IDEgKwogMyBmaWxlcyBjaGFuZ2VkLCA3IGluc2VydGlvbnMoKykKCmRp ZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vYW1kL2FtZGdwdS9hbWRncHVfY3MuYyBiL2RyaXZl cnMvZ3B1L2RybS9hbWQvYW1kZ3B1L2FtZGdwdV9jcy5jCmluZGV4IDhkZTI4Mzk5Nzc2OS4uNTQ3 MWI5M2Y2ODA4IDEwMDY0NAotLS0gYS9kcml2ZXJzL2dwdS9kcm0vYW1kL2FtZGdwdS9hbWRncHVf Y3MuYworKysgYi9kcml2ZXJzL2dwdS9kcm0vYW1kL2FtZGdwdS9hbWRncHVfY3MuYwpAQCAtMTI4 LDYgKzEyOCw4IEBAIHN0YXRpYyBpbnQgYW1kZ3B1X2NzX3BhcnNlcl9pbml0KHN0cnVjdCBhbWRn cHVfY3NfcGFyc2VyICpwLCB1bmlvbiBkcm1fYW1kZ3B1X2NzCiAJCWdvdG8gZnJlZV9jaHVuazsK IAl9CiAKKwltdXRleF9sb2NrKCZwLT5jdHgtPmxvY2spOworCiAJLyogc2tpcCBndWlsdHkgY29u dGV4dCBqb2IgKi8KIAlpZiAoYXRvbWljX3JlYWQoJnAtPmN0eC0+Z3VpbHR5KSA9PSAxKSB7CiAJ CXJldCA9IC1FQ0FOQ0VMRUQ7CkBAIC02ODgsNiArNjkwLDcgQEAgc3RhdGljIHZvaWQgYW1kZ3B1 X2NzX3BhcnNlcl9maW5pKHN0cnVjdCBhbWRncHVfY3NfcGFyc2VyICpwYXJzZXIsIGludCBlcnJv ciwKIAlkbWFfZmVuY2VfcHV0KHBhcnNlci0+ZmVuY2UpOwogCiAJaWYgKHBhcnNlci0+Y3R4KSB7 CisJCW11dGV4X3VubG9jaygmcGFyc2VyLT5jdHgtPmxvY2spOwogCQlhbWRncHVfY3R4X3B1dChw YXJzZXItPmN0eCk7CiAJfQogCWlmIChwYXJzZXItPmJvX2xpc3QpCkBAIC0xMzMyLDYgKzEzMzUs NyBAQCBpbnQgYW1kZ3B1X2NzX2lvY3RsKHN0cnVjdCBkcm1fZGV2aWNlICpkZXYsIHZvaWQgKmRh dGEsIHN0cnVjdCBkcm1fZmlsZSAqZmlscCkKIAkJZ290byBvdXQ7CiAKIAlyID0gYW1kZ3B1X2Nz X3N1Ym1pdCgmcGFyc2VyLCBjcyk7CisKIG91dDoKIAlhbWRncHVfY3NfcGFyc2VyX2ZpbmkoJnBh cnNlciwgciwgcmVzZXJ2ZWRfYnVmZmVycyk7CiAKZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2Ry bS9hbWQvYW1kZ3B1L2FtZGdwdV9jdHguYyBiL2RyaXZlcnMvZ3B1L2RybS9hbWQvYW1kZ3B1L2Ft ZGdwdV9jdHguYwppbmRleCA1OTgxYzdkOWJkNDguLjhmMGU2ZDkzYmI5YyAxMDA2NDQKLS0tIGEv ZHJpdmVycy9ncHUvZHJtL2FtZC9hbWRncHUvYW1kZ3B1X2N0eC5jCisrKyBiL2RyaXZlcnMvZ3B1 L2RybS9hbWQvYW1kZ3B1L2FtZGdwdV9jdHguYwpAQCAtMjM3LDYgKzIzNyw3IEBAIHN0YXRpYyBp bnQgYW1kZ3B1X2N0eF9pbml0KHN0cnVjdCBhbWRncHVfZGV2aWNlICphZGV2LAogCiAJa3JlZl9p bml0KCZjdHgtPnJlZmNvdW50KTsKIAlzcGluX2xvY2tfaW5pdCgmY3R4LT5yaW5nX2xvY2spOwor CW11dGV4X2luaXQoJmN0eC0+bG9jayk7CiAKIAljdHgtPnJlc2V0X2NvdW50ZXIgPSBhdG9taWNf cmVhZCgmYWRldi0+Z3B1X3Jlc2V0X2NvdW50ZXIpOwogCWN0eC0+cmVzZXRfY291bnRlcl9xdWVy eSA9IGN0eC0+cmVzZXRfY291bnRlcjsKQEAgLTM1Nyw2ICszNTgsNyBAQCBzdGF0aWMgdm9pZCBh bWRncHVfY3R4X2Zpbmkoc3RydWN0IGtyZWYgKnJlZikKIAkJZHJtX2Rldl9leGl0KGlkeCk7CiAJ fQogCisJbXV0ZXhfZGVzdHJveSgmY3R4LT5sb2NrKTsKIAlrZnJlZShjdHgpOwogfQogCmRpZmYg LS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vYW1kL2FtZGdwdS9hbWRncHVfY3R4LmggYi9kcml2ZXJz L2dwdS9kcm0vYW1kL2FtZGdwdS9hbWRncHVfY3R4LmgKaW5kZXggZDBjYmZjZWE5MGY3Li4xNDJm MmY4N2Q0NGMgMTAwNjQ0Ci0tLSBhL2RyaXZlcnMvZ3B1L2RybS9hbWQvYW1kZ3B1L2FtZGdwdV9j dHguaAorKysgYi9kcml2ZXJzL2dwdS9kcm0vYW1kL2FtZGdwdS9hbWRncHVfY3R4LmgKQEAgLTQ5 LDYgKzQ5LDcgQEAgc3RydWN0IGFtZGdwdV9jdHggewogCWJvb2wJCQkJcHJlYW1ibGVfcHJlc2Vu dGVkOwogCWludDMyX3QJCQkJaW5pdF9wcmlvcml0eTsKIAlpbnQzMl90CQkJCW92ZXJyaWRlX3By aW9yaXR5OworCXN0cnVjdCBtdXRleAkJCWxvY2s7CiAJYXRvbWljX3QJCQlndWlsdHk7CiAJdW5z aWduZWQgbG9uZwkJCXJhc19jb3VudGVyX2NlOwogCXVuc2lnbmVkIGxvbmcJCQlyYXNfY291bnRl cl91ZTsKLS0gCjIuMjUuMQoK --------------0k7B5PLwfnhdoEa8AI3ZXC0H-- From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B7ECBC433EF for ; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Am 08.04.22 um 14:24 schrieb Mikhail Gavrilov: > On Fri, 8 Apr 2022 at 16:13, Christian König wrote: > >> I own you a beer. >> >> I still don't know what happens here, but that makes at least a bit more >> sense than a patch which only changes comments :) >> >> Looks like we are missing something here. Can I send you a patch to try >> something later today? > Yes, please feel free to send me a patch for testing. > Please test the attached patch, it just re-introduce the lock without doing much else. And does your branch contain the following patch: commit d18b8eadd83e3d8d63a45f9479478640dbcfca02 Author: Christian König Date:   Wed Feb 23 14:35:31 2022 +0100     drm/amdgpu: install ctx entities with cmpxchg     Since we removed the context lock we need to make sure that not two threads     are trying to install an entity at the same time.     Signed-off-by: Christian König     Fixes: 461fa7b0ac565e ("drm/amdgpu: remove ctx->lock")     Reviewed-by: Andrey Grodzovsky     Signed-off-by: Alex Deucher Thanks, Christian. --------------0k7B5PLwfnhdoEa8AI3ZXC0H Content-Type: text/x-patch; charset=UTF-8; name="0001-drm-amdgpu-partial-revert-remove-ctx-lock.patch" Content-Disposition: attachment; filename="0001-drm-amdgpu-partial-revert-remove-ctx-lock.patch" Content-Transfer-Encoding: base64 RnJvbSBlMmUzOWNiMWE0YTFjN2MwZTNmZjJlNGUwMTg4Mzk0YjBlZGEwYmE2IE1vbiBTZXAgMTcg MDA6MDA6MDAgMjAwMQpGcm9tOiA9P1VURi04P3E/Q2hyaXN0aWFuPTIwSz1DMz1CNm5pZz89IDxj aHJpc3RpYW4ua29lbmlnQGFtZC5jb20+CkRhdGU6IEZyaSwgOCBBcHIgMjAyMiAxNjoyMjo1NSAr MDIwMApTdWJqZWN0OiBbUEFUQ0hdIGRybS9hbWRncHU6IHBhcnRpYWwgcmV2ZXJ0ICJyZW1vdmUg Y3R4LT5sb2NrIgpNSU1FLVZlcnNpb246IDEuMApDb250ZW50LVR5cGU6IHRleHQvcGxhaW47IGNo YXJzZXQ9VVRGLTgKQ29udGVudC1UcmFuc2Zlci1FbmNvZGluZzogOGJpdAoKVGhpcyByZXZlcnRz IGNvbW1pdCA0NjFmYTdiMGFjNTY1ZWYyNWMxZGEwY2VkMzEwMDVkZDQzNzg4M2E3LgoKV2UgYXJl IG1pc3Npbmcgc29tZSBpbnRlciBkZXBlbmRlbmNpZXMgaGVyZS4KClNpZ25lZC1vZmYtYnk6IENo cmlzdGlhbiBLw7ZuaWcgPGNocmlzdGlhbi5rb2VuaWdAYW1kLmNvbT4KLS0tCiBkcml2ZXJzL2dw dS9kcm0vYW1kL2FtZGdwdS9hbWRncHVfY3MuYyAgfCA0ICsrKysKIGRyaXZlcnMvZ3B1L2RybS9h bWQvYW1kZ3B1L2FtZGdwdV9jdHguYyB8IDIgKysKIGRyaXZlcnMvZ3B1L2RybS9hbWQvYW1kZ3B1 L2FtZGdwdV9jdHguaCB8IDEgKwogMyBmaWxlcyBjaGFuZ2VkLCA3IGluc2VydGlvbnMoKykKCmRp ZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vYW1kL2FtZGdwdS9hbWRncHVfY3MuYyBiL2RyaXZl cnMvZ3B1L2RybS9hbWQvYW1kZ3B1L2FtZGdwdV9jcy5jCmluZGV4IDhkZTI4Mzk5Nzc2OS4uNTQ3 MWI5M2Y2ODA4IDEwMDY0NAotLS0gYS9kcml2ZXJzL2dwdS9kcm0vYW1kL2FtZGdwdS9hbWRncHVf Y3MuYworKysgYi9kcml2ZXJzL2dwdS9kcm0vYW1kL2FtZGdwdS9hbWRncHVfY3MuYwpAQCAtMTI4 LDYgKzEyOCw4IEBAIHN0YXRpYyBpbnQgYW1kZ3B1X2NzX3BhcnNlcl9pbml0KHN0cnVjdCBhbWRn cHVfY3NfcGFyc2VyICpwLCB1bmlvbiBkcm1fYW1kZ3B1X2NzCiAJCWdvdG8gZnJlZV9jaHVuazsK IAl9CiAKKwltdXRleF9sb2NrKCZwLT5jdHgtPmxvY2spOworCiAJLyogc2tpcCBndWlsdHkgY29u dGV4dCBqb2IgKi8KIAlpZiAoYXRvbWljX3JlYWQoJnAtPmN0eC0+Z3VpbHR5KSA9PSAxKSB7CiAJ CXJldCA9IC1FQ0FOQ0VMRUQ7CkBAIC02ODgsNiArNjkwLDcgQEAgc3RhdGljIHZvaWQgYW1kZ3B1 X2NzX3BhcnNlcl9maW5pKHN0cnVjdCBhbWRncHVfY3NfcGFyc2VyICpwYXJzZXIsIGludCBlcnJv ciwKIAlkbWFfZmVuY2VfcHV0KHBhcnNlci0+ZmVuY2UpOwogCiAJaWYgKHBhcnNlci0+Y3R4KSB7 CisJCW11dGV4X3VubG9jaygmcGFyc2VyLT5jdHgtPmxvY2spOwogCQlhbWRncHVfY3R4X3B1dChw YXJzZXItPmN0eCk7CiAJfQogCWlmIChwYXJzZXItPmJvX2xpc3QpCkBAIC0xMzMyLDYgKzEzMzUs NyBAQCBpbnQgYW1kZ3B1X2NzX2lvY3RsKHN0cnVjdCBkcm1fZGV2aWNlICpkZXYsIHZvaWQgKmRh dGEsIHN0cnVjdCBkcm1fZmlsZSAqZmlscCkKIAkJZ290byBvdXQ7CiAKIAlyID0gYW1kZ3B1X2Nz X3N1Ym1pdCgmcGFyc2VyLCBjcyk7CisKIG91dDoKIAlhbWRncHVfY3NfcGFyc2VyX2ZpbmkoJnBh cnNlciwgciwgcmVzZXJ2ZWRfYnVmZmVycyk7CiAKZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2Ry bS9hbWQvYW1kZ3B1L2FtZGdwdV9jdHguYyBiL2RyaXZlcnMvZ3B1L2RybS9hbWQvYW1kZ3B1L2Ft ZGdwdV9jdHguYwppbmRleCA1OTgxYzdkOWJkNDguLjhmMGU2ZDkzYmI5YyAxMDA2NDQKLS0tIGEv ZHJpdmVycy9ncHUvZHJtL2FtZC9hbWRncHUvYW1kZ3B1X2N0eC5jCisrKyBiL2RyaXZlcnMvZ3B1 L2RybS9hbWQvYW1kZ3B1L2FtZGdwdV9jdHguYwpAQCAtMjM3LDYgKzIzNyw3IEBAIHN0YXRpYyBp bnQgYW1kZ3B1X2N0eF9pbml0KHN0cnVjdCBhbWRncHVfZGV2aWNlICphZGV2LAogCiAJa3JlZl9p bml0KCZjdHgtPnJlZmNvdW50KTsKIAlzcGluX2xvY2tfaW5pdCgmY3R4LT5yaW5nX2xvY2spOwor CW11dGV4X2luaXQoJmN0eC0+bG9jayk7CiAKIAljdHgtPnJlc2V0X2NvdW50ZXIgPSBhdG9taWNf cmVhZCgmYWRldi0+Z3B1X3Jlc2V0X2NvdW50ZXIpOwogCWN0eC0+cmVzZXRfY291bnRlcl9xdWVy eSA9IGN0eC0+cmVzZXRfY291bnRlcjsKQEAgLTM1Nyw2ICszNTgsNyBAQCBzdGF0aWMgdm9pZCBh bWRncHVfY3R4X2Zpbmkoc3RydWN0IGtyZWYgKnJlZikKIAkJZHJtX2Rldl9leGl0KGlkeCk7CiAJ fQogCisJbXV0ZXhfZGVzdHJveSgmY3R4LT5sb2NrKTsKIAlrZnJlZShjdHgpOwogfQogCmRpZmYg LS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vYW1kL2FtZGdwdS9hbWRncHVfY3R4LmggYi9kcml2ZXJz L2dwdS9kcm0vYW1kL2FtZGdwdS9hbWRncHVfY3R4LmgKaW5kZXggZDBjYmZjZWE5MGY3Li4xNDJm MmY4N2Q0NGMgMTAwNjQ0Ci0tLSBhL2RyaXZlcnMvZ3B1L2RybS9hbWQvYW1kZ3B1L2FtZGdwdV9j dHguaAorKysgYi9kcml2ZXJzL2dwdS9kcm0vYW1kL2FtZGdwdS9hbWRncHVfY3R4LmgKQEAgLTQ5 LDYgKzQ5LDcgQEAgc3RydWN0IGFtZGdwdV9jdHggewogCWJvb2wJCQkJcHJlYW1ibGVfcHJlc2Vu dGVkOwogCWludDMyX3QJCQkJaW5pdF9wcmlvcml0eTsKIAlpbnQzMl90CQkJCW92ZXJyaWRlX3By aW9yaXR5OworCXN0cnVjdCBtdXRleAkJCWxvY2s7CiAJYXRvbWljX3QJCQlndWlsdHk7CiAJdW5z aWduZWQgbG9uZwkJCXJhc19jb3VudGVyX2NlOwogCXVuc2lnbmVkIGxvbmcJCQlyYXNfY291bnRl cl91ZTsKLS0gCjIuMjUuMQoK --------------0k7B5PLwfnhdoEa8AI3ZXC0H--