136162 2014-08-22 11:09:27 -0700 [JSC] ASSERTION FAILED: imm26 == (imm26 << 6) >> 6 in JSC::ARM64Assembler::unconditionalBranchImmediate 2014-08-22 12:00:06 -0700 1 1 1 Unclassified WebKit JavaScriptCore 528+ (Nightly build) Unspecified Unspecified RESOLVED FIXED P2 Normal --- 108645 1 akiss webkit-unassigned benjamin cmarcelo commit-queue fpizlo gyuyoung.kim msaboff ossy oldest_to_newest 1030757 0 akiss 2014-08-22 11:09:27 -0700 When running tests on EFL/ARM64, jsc sporadically segfaults with "ASSERTION FAILED: imm26 == (imm26 << 6) >> 6" in JSC::ARM64Assembler::unconditionalBranchImmediate (e.g., when linking a call from 0x7fa76df114 to 0x7fb0728a20). The error is non-deterministic, it depends on where the executable allocator allocates chunks of memory. 1030758 1 236992 akiss 2014-08-22 11:13:47 -0700 Created attachment 236992 Proposed patch. 1030763 2 236992 msaboff 2014-08-22 11:22:29 -0700 Comment on attachment 236992 Proposed patch. r=me 1030774 3 236992 commit-queue 2014-08-22 12:00:02 -0700 Comment on attachment 236992 Proposed patch. Clearing flags on attachment: 236992 Committed r172863: <http://trac.webkit.org/changeset/172863> 1030775 4 commit-queue 2014-08-22 12:00:06 -0700 All reviewed patches have been landed. Closing bug. 236992 2014-08-22 11:13:47 -0700 2014-08-22 12:00:01 -0700 Proposed patch. 0001-Enable-fixed-executable-allocator-for-any-ARM64-targ.patch text/plain 2116 akiss RnJvbSAwYzkyMGEzYTJlZmNmM2ZmMDFjNDk2Njg4MjM2MzQ2OGQxMDM0M2IwIE1vbiBTZXAgMTcg MDA6MDA6MDAgMjAwMQpGcm9tOiBBa29zIEtpc3MgPGFraXNzQGluZi51LXN6ZWdlZC5odT4KRGF0 ZTogRnJpLCAyMiBBdWcgMjAxNCAxODoxMTowOSArMDAwMApTdWJqZWN0OiBbUEFUQ0hdIEVuYWJs ZSBmaXhlZCBleGVjdXRhYmxlIGFsbG9jYXRvciBmb3IgYW55IEFSTTY0IHRhcmdldAoKLS0tCiBT b3VyY2UvV1RGL0NoYW5nZUxvZyAgICAgIHwgMTggKysrKysrKysrKysrKysrKysrCiBTb3VyY2Uv V1RGL3d0Zi9QbGF0Zm9ybS5oIHwgIDQgKystLQogMiBmaWxlcyBjaGFuZ2VkLCAyMCBpbnNlcnRp b25zKCspLCAyIGRlbGV0aW9ucygtKQoKZGlmZiAtLWdpdCBhL1NvdXJjZS9XVEYvQ2hhbmdlTG9n IGIvU291cmNlL1dURi9DaGFuZ2VMb2cKaW5kZXggZmM5NjVkOS4uNTRmODhhMCAxMDA2NDQKLS0t IGEvU291cmNlL1dURi9DaGFuZ2VMb2cKKysrIGIvU291cmNlL1dURi9DaGFuZ2VMb2cKQEAgLTEs MyArMSwyMSBAQAorMjAxNC0wOC0yMiAgQWtvcyBLaXNzICA8YWtpc3NAaW5mLnUtc3plZ2VkLmh1 PgorCisgICAgICAgIEVuYWJsZSBmaXhlZCBleGVjdXRhYmxlIGFsbG9jYXRvciBmb3IgYW55IEFS TTY0IHRhcmdldC4KKyAgICAgICAgaHR0cHM6Ly9idWdzLndlYmtpdC5vcmcvc2hvd19idWcuY2dp P2lkPTEzNjE2MgorCisgICAgICAgIFJldmlld2VkIGJ5IE5PQk9EWSAoT09QUyEpLgorCisgICAg ICAgIFRoZSBBUk02NCBtYWNybyBhc3NlbWJsZXIgcmVsaWVzIG9uIG5lYXIgY2FsbHMgYmVpbmcg aW1wbGVtZW50ZWQgYnkgQkwKKyAgICAgICAgaW5zdHJ1Y3Rpb25zLCB3aGljaCBoYXZlIG9ubHkg MTI4TUIgb2Zmc2V0IHJhbmdlIGZyb20gUEMuIFRoZQorICAgICAgICBvbi1kZW1hbmQgZXhlY3V0 YWJsZSBhbGxvY2F0b3IgY2Fubm90IGVuc3VyZSB0aGF0IGFueSB0d28gbG9jYXRpb25zIGluCisg ICAgICAgIG1lbW9yeSBhbGxvY2F0ZWQgZm9yIHRoZSBKSVQtY29tcGlsZWQgY29kZSBhcmUgd2l0 aGluIHRoaXMgcmFuZ2UuIAorICAgICAgICBIb3dldmVyLCB0aGUgZml4ZWQgZXhlY3V0YWJsZSBh bGxvY2F0b3IgaGFzIGEgZml4ZWQgMTZNQiBtZW1vcnkgcG9vbCBmb3IKKyAgICAgICAgQVJNNjQu CisKKyAgICAgICAgKiB3dGYvUGxhdGZvcm0uaDoKKyAgICAgICAgRGVmaW5lIEVOQUJMRV9FWEVD VVRBQkxFX0FMTE9DQVRPUl9GSVhFRCBpZiBDUFUoQVJNNjQpLCBhbmQgdXBkYXRlCisgICAgICAg IGF0dGFjaGVkIGNvbW1lbnQuCisKIDIwMTQtMDgtMjEgIFRpbSBIb3J0b24gIDx0aW1vdGh5X2hv cnRvbkBhcHBsZS5jb20+CiAKICAgICAgICAgUmV2ZXJ0IHIxNzI4MzEsIGl0IGJyb2tlIHRoZSBX aW5kb3dzIGJ1aWxkLgpkaWZmIC0tZ2l0IGEvU291cmNlL1dURi93dGYvUGxhdGZvcm0uaCBiL1Nv dXJjZS9XVEYvd3RmL1BsYXRmb3JtLmgKaW5kZXggYWNlM2UwMy4uMTVjZmNkNyAxMDA2NDQKLS0t IGEvU291cmNlL1dURi93dGYvUGxhdGZvcm0uaAorKysgYi9Tb3VyY2UvV1RGL3d0Zi9QbGF0Zm9y bS5oCkBAIC04MjAsOSArODIwLDkgQEAKICNlbmRpZgogCiAvKiBQaWNrIHdoaWNoIGFsbG9jYXRv ciB0byB1c2U7IHdlIG9ubHkgbmVlZCBhbiBleGVjdXRhYmxlIGFsbG9jYXRvciBpZiB0aGUgYXNz ZW1ibGVyIGlzIGNvbXBpbGVkIGluLgotICAgT24geDg2LTY0IHdlIHVzZSBhIHNpbmdsZSBmaXhl ZCBtbWFwLCBvbiBvdGhlciBwbGF0Zm9ybXMgd2UgbW1hcCBvbiBkZW1hbmQuICovCisgICBPbiBu b24tV2luZG93cyB4ODYtNjQsIGlPUywgYW5kIEFSTTY0IHdlIHVzZSBhIHNpbmdsZSBmaXhlZCBt bWFwLCBvbiBvdGhlciBwbGF0Zm9ybXMgd2UgbW1hcCBvbiBkZW1hbmQuICovCiAjaWYgRU5BQkxF KEFTU0VNQkxFUikKLSNpZiBDUFUoWDg2XzY0KSAmJiAhT1MoV0lORE9XUykgfHwgUExBVEZPUk0o SU9TKQorI2lmIENQVShYODZfNjQpICYmICFPUyhXSU5ET1dTKSB8fCBQTEFURk9STShJT1MpIHx8 IENQVShBUk02NCkKICNkZWZpbmUgRU5BQkxFX0VYRUNVVEFCTEVfQUxMT0NBVE9SX0ZJWEVEIDEK ICNlbHNlCiAjZGVmaW5lIEVOQUJMRV9FWEVDVVRBQkxFX0FMTE9DQVRPUl9ERU1BTkQgMQotLSAK MS45LjEKCg==