1202067 - Size limit on IndexedDB Blob storing

Status: RESOLVED FIXED

(Core :: Storage: IndexedDB, defect, P5)

Description

[Alon Zakai (:azakai)]

Attachment: emscripten_temp.zip

The attached testcase attempts to store a 300MB Blob in IndexedDB. It fails silently on Firefox, the JS console shows

IndexedDB UnknownErr: ActorsParent.cpp:13734
IndexedDB UnknownErr: ActorsParent.cpp:12255

It works in Chrome. It also works if I reduce the size of the file, looks like around 256MB or so is fine.

Comment 1

[Jukka Jylänki]

Noting that this is a critical blocker for our upcoming fully IndexedDB based filesystem in Emscripten asm.js/wasm games.

Comment 2

[Andrew Overholt [:overholt]]

Jan, do you know what's going on here?

Comment 3

[Jan Varga [:janv]]

I can reproduce the crash with a simple test and 300 MB blob. Investigating...

Comment 4

[Jan Varga [:janv]]

So here's console output:
Hit MOZ_CRASH(IPC message size is too large) at /Users/varga/Sources/Inbound/ipc/glue/MessageLink.cpp:142
#01: mozilla::ipc::PBackgroundChild::SendPBlobConstructor(mozilla::dom::PBlobChild*, mozilla::dom::BlobConstructorParams const&)[/Users/varga/Sources/Inbound/obj-ff-dbg/dist/NightlyDebug.app/Contents/MacOS/XUL +0x695a0f]


and relevant code:
void
ProcessLink::SendMessage(Message *msg)
{
    if (msg->size() > IPC::Channel::kMaximumMessageSize) {
#ifdef MOZ_CRASHREPORTER
      CrashReporter::AnnotateCrashReport(NS_LITERAL_CSTRING("IPCMessageName"), n
      CrashReporter::AnnotateCrashReport(NS_LITERAL_CSTRING("IPCMessageSize"), n
#endif
      MOZ_CRASH("IPC message size is too large");
    }

    ...
}

I also tried to open the attached test and I got the same crash, so I believe this is the same issue as in bug 1274075.

Comment 5

[Kagami Rosylight [:saschanaz] (they/them)]

Fixed in 2016-12-23 nightly, somehow a little bit after bug 1274075.